Criminal Liability for Climate Disasters: From Caso Fortuito to Organizational Risk in the Anthropocene

1. Introduction. Beyond Fatality: Public Liability in the Era of Anthropogenic Climate Change.

The advent of the Anthropocene and the intensification of anthropogenic climate change, together with the progressive hyper-regulation of public organizations responsible for risk management, require a radical revision of the traditional paradigm. Nature can no longer be considered an external or neutral factor: the frequency and violence of extreme weather phenomena are now inseparably linked to cumulative human processes, which overturn classical statistical parameters of foreseeability and heighten the duties of protection incumbent upon public authorities.

In the comparative dimension, the evolution of public liability in the face of natural catastrophes finds a significant parallel in the U.S. debate on the validity of the Act of God defense. Although part of the American doctrine prematurely declared its demise in the Anthropocene, a more nuanced reading suggests a functional reconfiguration: the defense no longer operates as an insurmountable barrier grounded in the ungovernability of natural forces, but rather as a test of regulatory compliance and due care. From this perspective, wildfires, floods, and earthquakes cease to function as absolute exculpatory factors and instead become a stimulus for regulated communities to adopt rigorous precautionary standards. The focus of protection shifts from the exceptional nature of the event to the enforceability of preventive conduct, redefining the relationship between administrative discretion and criminal legality¹.

The recent Rigopiano judgment of the Italian Supreme Court stands at this crucial juncture. Far from being a mere operation of subsumption, the ruling outlines an innovative and systematic model of negligent imputation for natural disasters². Dogmatic categories such as the distinction between “danger” and “risk”, the dialectic between distal and proximate fault, the enhancement of mediated preventive powers, the sufficiency of class foreseeability, and the centrality of ex ante planning precautions converge to define a statute of public liability no longer centered on the immediate flash of the natural event, but on the rationality, timeliness, and resilience of the organizational structure that precedes it and shapes its harmful effects.

The present contribution aims to investigate the impact of this jurisprudential turning point, articulating the reflection along a unified logical-dogmatic path.

The inquiry takes its starting point from the extrapolation of the methodological sequence traced by the aforementioned Rigopiano judgment, in order to isolate a framework of general principles capable of guiding the judgment of fault whenever a natural event is grafted into complex public bureaucracies and multi-level civil protection systems. This internal (national) perspective is then projected into the supranational dimension, verifying its perfect consonance with the horizon of positive obligations to protect the right to life (positive obligations) developed by the case law of the ECtHR under Article 2 ECHR in the face of environmental disasters.

Finally, the essay addresses the profiles of strictly comparative dogmatics. Through a close comparison with the Anglo-American experience and the lively US debate surrounding the crisis of the Act of God defense, the intent is to highlight how the very notion of caso fortuito is today touched by a profound transition. The introduction of predictive technologies and artificial intelligence systems transposes "uncertainty" into a calculable factor, redefining the boundaries of effectively governable risk and delineating a new, more demanding standard of due diligence in the era of global risks.

2. Foundational Concepts: Distinguishing "Danger" from "Risk" in Natural Disasters.

To initiate the methodological itinerary outlined above, the scrutiny of the reasoning in the Rigopiano judgment requires moving from the isolation of the material causal dimension, where a first, significant inversion of complexity compared to the classical phenomenology of negligent result-based offenses is recorded. Assuming the morphological exceptionality and extraordinary destructive power of the natural phenomenon that historically manifested itself, the Supreme Court justices highlight how the naturalistic causal horizon does not, in reality, present true problematic nodes. The causal genesis of the situations of danger (the structural collapse of the hotel infrastructure) and of the harmful events (the death and injuries of the victims) resides, in terms of unequivocal but-for causation, in the mechanical thrust of the avalanche; correlatively, the potential causal contribution of the seismic phenomena recorded in the preceding hours is argumentatively downplayed, proving to be devoid of any real superseding effect or an autonomous capacity to outline an alternative causal course pursuant to Article 41, paragraph 2, of the Italian Criminal Code

Having linearly resolved the level of material causation, the Supreme Bench immediately shifts the centerpiece of the inquiry to the properly normative dimension of the so-called causation of fault³. Here, the first, fundamental nexus of the multi-level imputational model is introduced: the strictly legal connection that must exist not between the action, naturalistically understood, and the result, but rather between the specific note of unlawfulness of the conduct—namely, the non-observance of the precautionary rule—and the result hic et nunc verified. The tipicità⁴ of the negligent offense, the Supreme Court judges remind us, cannot indeed be exhausted by the mere and formal ascertainment of an abstract variance from the required standard of diligence: it is indispensable to determine whether that specific violation concretely increased the risk or whether the harmful event constitutes its exact realization, according to a rigorous evaluation of its avoidability through alternative lawful conduct⁵.

It is precisely upon this normative threshold, as a necessary prerequisite to the examination of the individual positions of guarantee, that the Supreme Court grafts that methodological cleavage destined to govern the entire statute of public liability for disasters: the fault line separating "danger" from "risk”.

The aforementioned expansion of precautionary standards exposes, however, negligent imputation to severe dogmatic aporias, heightened by the perennial friction between the abstract dimension of the rule and the hyper-concreteness of judge-made law. In the absence of precise guidelines or regulatory protocols predetermined by the legislator, the judge tends to slide toward a judicial substitution marked by the "justice of the specific case," wherein the precautionary rule risks not pre-existing the conduct but rather being shaped ex post within the adjudication itself.

3. The Social Construction of Risk and the Definition of the "Unforeseen Event" as Pure Danger.

Following of the methodological cleavage between danger and risk lies, with equal dogmatic dignity, the crucial categorization of "unforeseen events". This is a notion that receives a precise legal perimetration from the Rigopiano judgment and organically unites with the aforementioned developments in the sociology of risk, according to which natural phenomena do not exhaust their criminal law relevance within the mere, circumscribed dimension of their material impact force, but instead acquire normative significance only through the prism of organizational choices that determine the exposure and vulnerability of communities.

In the imputational design traced by the Supreme Court, the "unforeseen event" is identified as that natural phenomenon radically devoid of precursor or anticipatory signals, characterized by an instantaneous dynamic or, in any case, one not structured into recognizable sequential phases; an event that, due to these intrinsic characteristics, precludes the activation of any effective emergency safeguard in loco and, precisely for this reason, empties the contingent precautions of the proximate phase of causal and negligent relevance, projecting the entire judgment of liability into a highly anticipated dimension. Within this hermeneutic prism, unpredictability disinvests itself of its purely epistemic dimension – linked to the abstract knowability or historicity of the phenomenon, which may well be extensively documented and mapped – to assume a strictly operational connotation. It does not reside in the scientifically unknown, but rather in the contingent absence of technical-operational indicators capable of timely triggering civil protection measures in the immediate imminence of the disaster.

4. Historical Evolution of "Unforeseeable Accident" (Caso Fortuito) in Italian Criminal Law Doctrine. The Nineteenth-Century Tradition: Carmignani and Carrara

To fully appreciate the disruptive nature of this modern jurisprudential paradigm regarding the unforeseen event, it is imperative to juxtapose it against the classical foundations of the unforeseeable accident (caso fortuito) rooted in nineteenth-century Italian criminal law tradition.

In light of the taxonomic decomposition outlined thus far, a question of pressing dogmatic relevance arises: whether, and within what boundaries, the category of the "unforeseen event" shaped by modern case law is capable of overlapping, or at least coherently dialoguing, with the classical statute of unforeseeable accident rooted in the Italian criminal law tradition, with special regard to the limits of negligent imputation.

Upon an akin conceptual terrain, yet governed by a more rigorous systematic endeavor, lies the magisterium of Francesco Carrara. In the pages of the Opuscoli, the caso fortuito is theorized as the event which, crashing dramatically outside the sphere of finalistic control of the subject, reveals itself to be unpredictable and inevitable both according to ordinary diligence and the extraordinary diligence enforceable⁶.

Its dogmatic function resides in its capacity to disarticulate the psychological nexus between the agent and the fact: where foreseeability is lacking, the normative space of fault is zeroed. The fortuitous event thus rises to an internal limit of the principle of culpability itself.

Nevertheless, Carrara also preserves the firm barrier against the risks of original unlawfulness: the caso fortuito does not excuse the actor who finds himself in a situation of deviance from the law, because whoever voluntarily implements a prohibited conduct assumes upon himself the risk of causal courses, whether ordinary or extraordinary, barring the supervention of a factor so exceptional as to sever the material causal nexus itself. The Carrarian statute of the casus rests, in short, upon a strictly cumulative conceptual triad: the intrinsic lawfulness of the initial action, the exercise of the maximum enforceable diligence, and the absolute unpredictability-inevitable nature of the harmful result.

From the legacy of this dual nineteenth-century tradition, a notion of casus is derived that possesses a sharp physiognomy, highly relevant in the contemporary debate. In the first place, the casus conceptualizes a detachment both from force majeure (understood as vis maior cui resisti non potest, which radically annuls suitas and freedom of choice) and from mere material accident; it identifies, more properly, the failure of foreseeability and avoidability measured against the parameter of the model agent. In the second place, the casus qualifies as a category operating at the level of subjective and normative imputation, not of mere material causation: the statistical exceptionality of the natural phenomenon is a necessary but not sufficient condition, as it remains necessary to verify the actual deficit of cognitive and governable control on the part of the subject.

Finally, its primary policy-oriented and safeguarding function surfaces: to prevent the attribution of criminal liability from abdicating the principle of culpability in order to slide toward covert forms of strict liability or for the sole causation of the event (liability based purely on the result achieved), reaffirming that criminal reproach is legitimate only if and within the boundaries in which the event respects the area of normative and organizational control of the public agent.

"Unforeseeable Accident" and "Supervening Cause" (Causa Sopravvenuta): Critical Remarks on Jurisprudential Definitional Overlap and the Reconstruction of the Levels of Imputation.

Leading the casus back into the domain of the governability of the situation, as a highly general prerequisite of criminal relevance, inevitably leads to confronting one of the most intricate nodes of the positive system: the progressive and problematic definitional overlap between caso fortuito pursuant to Article 45 of the Italian Criminal Code and the supervening cause sufficient by itself to determine the result (causa sopravvenuta da sola sufficiente a determinare l'evento) pursuant to Article 41, paragraph 2, of the Italian Criminal Code. This is a conceptual osmosis that finds frequent nourishment in jurisprudential practice, wherein both categories are indistinctly identified as the intrusion of an anomalous, exceptional, and autonomous factor, deemed sic et simpliciter capable of severing the causal nexus or, in any event, of excluding the actor's liability⁷. Such a definitional flattening, however, reveals itself to be dogmatically fragile and systematically misleading, concealing the profound structural and functional diversity that separates the two institutions⁸.

5.1. A Brief Historical Itinerary of the Act of God.

Such an evolutionary itinerary unfolds through precise jurisprudential milestones. The first and complete systematic formulation of the institution is found in the celebrated Shelley’s Case (1581), within the scope of which Sir Edward Coke solemnly ruled that what derives from "those things which are inevitable by the act of God, which no industry can avoid, nor policy prevent" could not be considered ascribing to man¹⁰. Such a definition, although blossomed within a context of strict civil law, carried within itself in nuce the same structural vectors destined to shape the category in subsequent centuries: absolute inevitability, the irresistibility of the natural force, and the total absence of a human causal contribution.

In the eighteenth century, concomitantly with the affirmation of Newtonian physics, Lord Mansfield reworked the category in the case of Forward v. Pittard (1785), circumscribing the Act of God to that occurrence "which could not happen by the intervention of man, as storms, lightning and tempests"¹¹. Although theological causation by now gave way to a scientific-natural causation, the Mansfieldian formula preserved a core of pre-modernity, identifiable in the assumption that certain climatic cataclysms presented such an intensity as to place themselves intrinsically beyond any human possibility of prognosis and governance.

The definitive push toward normative modernization arrives in the nineteenth century with the ruling in the case of Nugent v. Smith (1876)¹², in which it was stated:

[[All] that can be required of the carrier is that he shall do all that is reasonably to be expected from a person in his situation... The 'act of God' is a mere short way of expressing this proposition. A common carrier is not liable for any accident as to which he can show that it is due to natural causes directly and exclusively, without human intervention, and that it could not have been prevented by any amount of foresight and pains and care reasonably to be expected from him.

The decision of the English Supreme Bench introduced two pivotal pillars for the subsequent architecture of criminal law: the causal exclusivity of the natural factor, which anticipates the modern developments of the superseding cause, and the relativization and economic balance of precautionary measures, which prefigures the contemporary standard of reasonable foreseeability.

The Transformation of the Elements of the "Act of God" Since the Seventeenth-Century Scientific Revolution.

On the strength of this stratified jurisprudential path, contemporary Anglo-American doctrine has isolated three constitutive, cumulative elements fit to integrate the Act of God defense: (1) the exclusive natural origin of the event, understood as the absolute absence of human cooperation, whether direct or indirect; (2) the objective unpredictability of the phenomenon, which must not be anticipatable by a reasonable agent in light of the best scientific knowledge available at the time of the fact; (3) physical irresistibility, configurable if the harmful effects could not have been avoided even through the adoption of the most accurate preventive measures enforceable.

In this sector as well, the evolution of scientific knowledge has played a catalytic role.

Within the perimeter of criminal law, the Act of God operates chiefly as a causation defense, positioning itself within the bifurcated model of Anglo-American causation, by virtue of which the event can be ascribed to the agent only if the conduct reveals itself to be, at the same time, the actual cause (to be ascertained through the counterfactual of the but-for test) and the proximate cause (meaning a legally relevant and non-remote cause). In this framework, the Act of God intervenes by interrupting the nexus of legal imputation in the guise of a superseding cause (an interrupting supervening cause), relegating the prior conduct to a mere antecedent devoid of criminal relevance. Case law has developed strict admissibility criteria for this line of defense: the natural event must manifest itself as radically unpredictable (unforeseeable), entirely independent of the defendant's action, and endowed with a preponderant etiological force, such as to obscure and neutralize the area of risk originally triggered by the agent¹³.

This explains the rigorous transposition of the institution within United States positive law and federal environmental legislation ¹⁴. Already in the Clean Water Act of 1972 (section 311), the Washington legislature provided that the operator of a vessel or a facility could go free from liability for the discharge of oil or hazardous substances if they demonstrated that the release was caused "solely by [...] an act of God"¹⁵, which was, in turn, defined as "an act occasioned by an unanticipated grave natural disaster" ¹⁶. In 1980, the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), known as Superfund, codified an even denser definition, which directly borrows the maxims of the common law tradition:

For purpose of this subchapter— (1) The term “act of God” means an unanticipated grave natural disaster or other natural phenomenon of an exceptional, inevitable, and irresistible character, the effects of which could not have been prevented or avoided by the exercise of due care or foresight¹⁷.

A text, this, integrally internalized by Congress ten years later within the body of the Oil Pollution Act (OPA) of 1990¹⁸.

Yet, despite such a detailed regulatory framework, empirical analysis of the case law yields a macroscopic datum of extraordinary theoretical interest: as aptly noted by scientific literature, "the number of reported cases where the act of God defense had prevailed against environmental liability [...] was also exactly zero"¹⁹. The exculpatory efficacy of the Act of God has entirely zeroed out in contemporary applicative practice.

Such an apparent eclipse of the category is not accidental: it constitutes the plastic sanction of the fact that, in the era of anthropogenic climate change, the evolution of meteorological sciences and the advent of sophisticated predictive technologies have drastically eroded the prerequisites of epistemic unpredictability and physical inevitability. From the moment global human conduct alters climatic cycles and technology offers the tools to map, anticipate, and counter the fury of the elements, the distinction between the pure natural event and the anthropic disaster dissolves; the area of governable risk expands, and the claim to invoke the force majeure of nature recedes before the omission of due care and structural prevention, binding the experience of the common law to the most advanced European developments of distal organizational fault.

Anthropogenic Climate Change as a Neutralizing Factor of the Causation Defense.

The ridge of most advanced and disruptive theoretical innovation in the contemporary trans-Atlantic debate undoubtedly concerns the diachronic impact of anthropogenic climate change on the status and the very resilience of the Act of God²⁰. The thesis progressively consolidating within criminal and environmental law reflection postulates that the advent of the Anthropocene operates a true tabula rasa of the causation defense, succeeding in emptying from within each of the three cardinal requirements historically developed by the common law: the exclusively natural origin of the phenomenon, its intrinsic epistemic unpredictability, and its physical irresistibility²¹. The massive interference of human activities with biospheric and thermodynamic cycles has irrevocably altered the ontological purity of the casus, transmuting the meteorological event from a fact of nature into an (indirect) product of man.

Equally, the dogma of unpredictability undergoes a radical downsizing: although the exact spatial-temporal coordinate or the granular intensity of the single disaster may preserve margins of inevitable prognostic uncertainty, computational meteorology by now guarantees a strict "class foreseeability": it is scientifically certain, expected, and even quantified that climate macro-events of an exponential intensity compared to historical averages will occur, which precludes in radice the possibility of qualifying the naturalistic supervention in terms of a superseding cause that is entirely anomalous and foreign to the calculation of risk.

Finally, irresistibility – understood as the material impossibility of avoiding the event even in the face of maximum diligence – is subjected to a strict test of structural resistance. The public guarantor or the industrial operator is no longer allowed to entrench themselves behind the astonishing magnitude of the catastrophe in order to invoke an exemption from liability; a normative burden weighs upon them to demonstrate that they have prepared every reasonable, timely, and technologically advanced precautionary measure fit to neutralize or, at the very least, minimize and mitigate the harmful impact on the territory and on the protected legal assets.

6. The Statute of Specific Negligence in Complex Precautionary Systems: Strict Legality, Governance of Permitted Risk, and Euro-Unitary Coordinates.

Within the architecture of modern precautionary legal systems, the category of specific negligence—whose supporting coordinates found a significant hermeneutic consolidation in the well-known and recent jurisprudential ruling on the Rigopiano disaster —plays a dogmatic and policy-oriented role of absolute centrality. Indeed, the positivization of the precautionary rule operates a profound structural transition compared to the past: it does not merely integrate the precept but replaces the traditional (and often fluid) judgment of foreseeability and avoidability measured against the abstract figure of the model agent (homo eiusdem professionis et condicionis). The written rule has the merit of incorporating and crystallizing ex ante a wealth of scientific knowledge and cutting-edge technological parameters belonging to specialized and sectorial domains that are, by their very nature, precluded from the common experience of the average man. In a socio-economic context marked by an increasing technological hyper-complexity and the refinement of risk management protocols, this dynamic has triggered a progressive expansion of codified precautions, causing a parallel contraction of the operational area of general negligence; from this derives a model of imputation undoubtedly less inclined to the individualizing personalization of the judgment, yet reaching toward a superior applicative certainty and uniformity of treatment.

Such a regulatory and judicial framework necessitates a profound and rigorous revision, imposed by the core principles of an authentically democratic society, in which the predictability of punishment constitutes an inalienable corollary of the citizen's freedom. The incriminating rule and its concrete jurisprudential application must shine for precision and clarity, so as to preclude any arbitrary application by the judge and allow the citizen not only to conform their conduct to the precepts of the law, but also to calculate with sufficient certainty the afflictive consequences of their actions.

The effective force of this constellation of guarantees can be validly protected only by anchoring the preventive system solely to the paradigm of specific negligence, the only one capable of simultaneously satisfying two indispensable dimensions of criminal legality: on the one hand, the principle of the statutory monopoly of criminal law, which attributes exclusively to the legislature (or, through it, to the secondary administrative authority) the technical task of identifying and formalizing the precautionary rule; on the other hand, the principle of predictability, ensuring to the citizen and the public administrator the prior and granular knowledge of the dutiful behaviors to be implemented in the management of the risk entrusted to them.

The dogmatic foundation of this necessary and biunivocal correspondence between specific negligence and the statutory monopoly of criminal law receives a reinforced reading precisely within the precautionary field, where one takes into account the markedly "consumerist" character of contemporary society, within which the dutiful protection of public safety must constantly measure and balance itself against the principle of the freedom of private economic initiative. It is the constitutional text itself that traces the coordinates of this normative synthesis: Article 41 of the Italian Constitution, in proclaiming the freedom of economic initiative, shapes its exercise in harmony with "social utility," forbidding that it may damage "safety, freedom, human dignity" and demanding its definitive submission to social ends through "appropriate controls" determined by "the law." A combined and synergistic reading of Articles 25, paragraph 2, and 41, paragraph 3, of the Constitution thus outlines an inseparable methodological bond for the criminal-precautionary legislator: precautionary rules—as a direct declination of the "appropriate controls" of constitutional rank—must necessarily be written and codified. The exclusion or drastic marginalization of unwritten rules prevents economic initiative and administrative action from being illegitimately brought within microscopic operational spaces, lower than that area of permitted risk that the legislator intended to trace and which the Italian Constitutional Charter guarantees²².

In this perspective, the structuring of the entire civil protection sector on the basis of positive and codified precautionary rules does not merely respond to an endo-constitutional demand for legality but fits harmoniously into a broader Euro-unitary framework, structurally oriented toward high and homogenous standards of collective safety. In a Union characterized by integrated market dynamics, in which citizens are constantly users of complex infrastructures and recipients of public services with a very high technological content, civil protection functions assume an essential value for safeguarding public trust in the stability of the territory and the safety of economic activities.

The uniformity and codification of precautionary obligations, therefore, do not aim solely at guaranteeing conditions of a level playing field among the economic operators of the different Member States, but prevent regulatory asymmetries in the management of natural or anthropic risks from giving rise to unacceptable disparities in the protection of citizen-consumers living and operating in the common European space. The safety of the territory, the environment, and infrastructural networks thus rises to a true structural prerequisite for the proper functioning of the internal market. In such a scenario, the policy-oriented choice to anchor negligent liability exclusively to the violation of specific and predetermined precautionary rules reveals itself to be not only faithful to national principles of strict legality, but fully functional to that regulatory convergence which the European Union considers indispensable to combine a high level of protection of the person with a stable, predictable, and non-distorted economic environment for the actors called upon to the macro-organizational management of risk.

7. The Framework of Objective Imputation of the Result (objektive Zurechnung) in the Judicial Deciphering of the Rigopiano Disaster: Spheres of Competence, Risk Nexus, and the Statute of Scientific Evidence.

The analysis of the complex etiological and precautionary meshes that envelop modern precautionary disasters finds a decisive factor of dogmatic clarification when jurisprudential findings are vetted in light of the theory of the objective imputation of the result (otherwise designated as the "risk nexus"). Developed within the domain of the most refined German-language dogmatics (objektive Zurechnung), this theoretical construct does not position itself in alternative or substitutive terms with respect to traditional conditionalist theory, but rather as an indispensable normative and integrative statute thereof. It can be effectively defined as the "complex of prerequisites necessary to establish when a certain typical result can be deemed ascribing to the subject according to a legally relevant risk nexus"²³, rising, in the final analysis, to a true technical category which, on the systematic level of the analysis of the offense, gives concrete expression to the constitutional principle of personal criminal liability.

A true objective-normative causa ad excludendum thus emerges, which precludes in radice – due to a defect of objective tipicità of the risk nexus – any further and supererogatory investigation of a causal or subjective nature. The function of this paradigm, far from being merely speculative, assumes a corrective and deflative value with respect to the hypertrophies of the pure conditionalist model, allowing to circumscribe the boundaries of criminal liability and avoiding unacceptable regressions ad infinitum toward conducts that, while materially con-causal, place themselves outside the area of precautionary governability appertaining to the individual guarantor.

Now, the motivational structure expressed by the Rigopiano judgment lends itself to being lucidly decoded and declined according to the hermeneutic canons of objective imputation. The entire argumentative backbone of the Supreme Court seems indeed to replicate the bifurcated scanning of the objektive Zurechnung, valorizing the category of competence over risk as a regulatory and selective criterion of negligent liability.

The first phase of the judgment – the ex ante prognosis on the creation or increment of the unlawful risk – emerges with crystalline sharpness where the Supreme Judges proceed to perimetrate the sphere of competence of regional Civil Protection officials. The Court highlights how a legal-administrative obligation weighed stably upon such organs to prepare the Avalanche Danger Localization Map (Carta di localizzazione del pericolo valanghe – CLPV), identifying in this fulfillment not a mere bureaucratic formalism, but a structural and planning duty of fundamental importance for the governance of avalanche risk on the territory. The violation of this obligation, omissively protracted for years, prevented the timely technical classification of the territory, generating a systemic and latent danger for all exposed sites; in this manner, the public omission directly originated and aggravated a non-permitted risk for the primary assets of life and individual safety.

Still within this first prognostic segment, the Supreme Court tackles the thorny issue of the foreseeability of the avalanche event, clarifying its epistemological statute: the Rigopiano accident was certainly configured as an "unforeseen event" in its exact and granular times and modes of phenomenological expression, but it was fully foreseeable and calculable under the profile of "class foreseeability" within that specific orographic and climatic context. This assessment, corroborated by the reference to the 2007 Historical Avalanche Map, espouses an exquisitely stochastic reasoning, perfectly attuned to the scheme of objective imputation, according to which the ex ante prognosis does not require a quasi-divinatory premonition of the specific and concrete occurrence, but rather the abstract recognizability and precautionary governability of the typology of the normatized risk.

The second phase of the statute of imputation – the ex post verification regarding the materialization of the risk in the harmful event – surfaces in the crucial passages of the ruling where the counterfactual scrutiny is performed. The Court of legitimacy observes that the avalanche event constituted the dramatic and specific realization of that very same risk that the Region had the duty to govern and which had remained devoid of protection: had the CLPV been diligently drafted, the area on which the hotel complex stood would have necessarily been classified as a high avalanche danger zone, mandating the compulsory adoption of precautionary measures, evacuations, or operating bans fit to prevent the event or, at the very least, minimize its destructive impact.

Conversely, the scrutiny discernible in the same decision regarding the positions of the municipal bodies demonstrates the symmetrical application of the causa ad excludendum. In reconstructing the duties of the mayors, the Supreme Court observes how the avalanche risk, under the profile of macro-territorial planning, fell outside their specific sphere of planning competence. The omissions imputed to the local administrators—namely, the failure to adopt the updated urban plan or the omitted issuance of the contingent ordinance pursuant to Article 15 of Regional Law no. 47/1992—had in no way exerted an etiological efficacy upon the risk that subsequently materialized, which had already been entirely determined upstream by the macro-omission of the regional structure. Since the realized risk did not belong to the sphere of managerial competence of the municipal organ, the objective imputatio of the event radically fails, rendering supererogatory and logically absorbed any further assessment regarding material causation or the subjective culpability of the mayors.

In this strict framework of criminal verifications, a role of epistemological balance is assigned to technical-scientific evidence, understood as an irreplaceable tool for the objectification of the risk nexus. The Supreme Judges extensively recall the findings and conclusions delivered by the panel of experts, which attested with certainty to the full scientific classifiability of the area as a site exposed to avalanche dynamics, as well as the abstract salvific capacity of the mitigation measures provided by the technical regulations of the sector. The ruling avails itself of such technical-scientific evidence²⁴ to nourish and validate both the ex ante prognostic judgment (anchoring class foreseeability to rigorous mathematical and geological models of knowledge) and the ex post diagnostic judgment (demonstrating the perfect symmetry between the omitted risk and the consumed offense). In the prognostic phase, in particular, scientific evidence assumes a crucial function, as it allows to determine with clinical precision whether, and to what extent, that specific class of catastrophic events was knowable and technologically governable at the moment of the planning choices (or omissions) of the public administration.

In conclusion, the Rigopiano judgment offers a coherent and mature jurisprudential application of the theoretical statute of the objective imputation of the result: through the rigorous demarcation of spheres of competence, the prognostic evaluation of the creation of unlawful risk, the diagnostic verification of its materialization in the offense, and the courageous recourse to the causa ad excludendum, the Court of legitimacy succeeds in the intent of rescuing the negligent disaster from the shoals of position-based strict liability, translating the ascertainment of the fact into a negligent reproach that is authentically proportionate, calculable, and refractory to any punitive automatism.

8. The European Dimension: Positive Obligations under Article 2 ECHR and Natural Disasters.

The structural and ex ante approach expressed by domestic case law in defining anticipated precautions finds a symmetrical and powerful reflection on the supranational level within the development of the so-called conventional positive obligations of protection. The European Court of Human Rights, moving from the normative pivot of Article 2 ECHR, has progressively extended the scope of the right to life well beyond the merely negative dimension of abstention from arbitrary State interference, configuring a precise proactive duty upon public authorities to prepare a legislative, administrative, and precautionary framework fit to mitigate the risks deriving from natural disasters or dangerous human activities.

Under this profile, the leading cases Öneryıldız v. Turkey²⁵ and Budayeva and Others v. Russia²⁶ mark an indispensable dogmatic juncture for contemporary environmental risk criminal law. In these rulings, the Strasbourg Court held that the State’s liability – and, consequently, that of individual public agents holding the relative positions of guarantee – does not arise so much from the inability to govern the destructive impact of nature in the immediate aftermath of the catastrophic event (the level of emergency or proximal fault), but rather from the failure to adopt, upstream and at a temporal distance from the event, adequate measures for urban planning, land-mapping, and early warning systems (the level of structural prevention or distal fault).

Here is an evident teleological consonance between Strasbourg’s hermeneutic horizon and the imputative architecture of the Rigopiano judgment: in both models, the unpredictability of the when or the quomodo of an extreme natural phenomenon (be it an avalanche or a mudslide) loses any excusing efficacy if the event itself belonged to an abstractly foreseeable and mappable "risk class," which was therefore avoidable through structural precautions. Imputation thus shifts from the natural event to the defective organizational conduct.

The recent and landmark decision of the Grand Chamber in the case of Verein KlimaSeniorinnen Schweiz and Others v. Switzerland²⁷ definitively projects this conceptual paradigm into the domain of the Anthropocene. By ruling that the State’s inertia or structural insufficiency in countering the systemic effects of anthropogenic climate change integrates a violation of the obligations to protect fundamental rights, supranational jurisprudence mandates a definitive reshaping of the boundaries of caso fortuito pursuant to Article 45 of the Italian Criminal Code. The "shield of nature" and the category of fatality dissolve wherever scientific evolution and predictive models have transformed uncertainty into a calculable factor, transmuting the natural danger into a risk entirely ascribable to the sphere of control and governance of the public organization.

This jurisprudential transition deeply questions the statute of legality within Common Law systems, where the most perceptive doctrine highlights how the anthropogenic emergency is fostering a rediscovery of the so-called principle of legality as a canon of statutory interpretation²⁸. Traditionally understood as a hermeneutic presumption against the implied repeal of fundamental rights by the legislature, the principle is today declined in a "climate-protective" key, requiring courts to interpret rules conferring powers and duties in a manner compliant with the maximum protection of human life against eco-climatic threats. From this derives a significant raising of the standard of enforceability regarding the preventive conduct of the public administrator: administrative and organizational discretion can no longer extend to tolerating the omission of precautions in the face of scientifically established global risks, thereby reshaping, on a global scale, the perimeter of negligent reproach for the failed prevention of the result.

9. The Taxonomy of Disasters Between Phenomenological "Notice" and "Unforeseeability": Multi-Level Organizational Models and the Chronological Dimension of Anticipated Precautions.

The proactive duties established by the ECtHR at the supranational level necessitate a structural and highly calibrated implementation within domestic, polycentric administrative systems. Consequently, translating these positive obligations into localized risk management requires a precise taxonomy of disasters.

The inextricable nexus binding the typology of risk to the concrete modalities of forecasting and prevention activities receives, in the dictum of the Supreme Court, a rigorous methodological sanction: precautionary measures cannot be abstractly modelled but demand a granular calibration to the morphological and structural properties of the feared event. Such a principle necessarily confronts the intrinsically decentralized and polycentric architecture of the civil protection system, historically informed by the canon of vertical subsidiarity, by virtue of which the legal system entrusts the provision of the initial emergency response to the municipal body, as the authority geographically closest to the source of danger, reserving the activation of upper institutional levels (Region and State) solely to hypotheses where the calamitous event exceeds local response capabilities in magnitude or scope.

However, the Judge of legitimacy astutely observes how the application of this subsidiary framework has frequently led trial courts to incur a conspicuous interpretative bias, resulting in an almost exclusive focus on the acts or omissions of municipal organs for the sole reason of their geographic proximity to the disaster. Such an interpretative choice ends up obliterating the role and grave non-fulfilments of more distant levels of government, whereas a correct multidimensional and multi-level approach to risk administration mandates a modulation of the criminal inquiry on the basis of the specific physiognomy of the disaster, with inevitable and profound repercussions on the correct decomposition and attribution of individual liabilities.

Precisely for the purpose of disarticulating improper managerial overlaps, the Supreme Bench – while recalling the well-known precedent concerning the 2009 Genoa flood, from which it nonetheless distances itself through a foundational dogmatic refinement – establishes a crucial taxonomic distinction between "events with notice" and "unforeseen events". The former ("events with notice") are identified as those calamitous phenomena whose phenomenological onset is anticipated by clear and progressive meteorological or hydrogeological signs, such as to permit an operational response articulated in recognizable and sequential phases (attention, pre-alarm, alarm) parallel to the worsening of the threat. Conversely, "unforeseen events" are characterized by an instantaneous, sudden, or immediate dynamic of action, structurally devoid of prodromic indicators or anticipatory signs, and therefore lacking a temporal scanning perceptible in terms of a "before" and "after.".

With respect to this second and problematic category of unforeseen events, the statute of preventive action—both in its dimension of legislative regulation and in that of administrative execution—undergoes a radical methodological contortion: the effectiveness of the precautionary precept cannot be entrusted to the management of the imminent crisis, but demands the adoption of anticipated precautions destined to be implemented at a considerable temporal distance from the moment of the disaster's consummation. It is only through long-term planning interventions, urban planning, and structural zoning constraints that the legal order can aim to neutralize, or at least compress within the threshold of permitted risk, the latent destructive power within the territory.

Bringing these methodological premises into the perimeter of the Abruzzo disaster, the Supreme Court qualifies the avalanche that overwhelmed the building of the Rigopiano hotel as a macroscopic "unforeseen event." From this derives the disruptive effect that the precautionary fulfilment decisive for safeguarding human lives should have been prepared not during the convulsed phase of the emergency or in the imminence of the snow collapse, but rather at a conspicuously prior time. In light of regional sectorial legislation, the primary dutiful conduct was identified upstream in the formal classification of the Rigopiano area as a site exposed to avalanche danger—a planning fulfilment that would have inescapably imposed strict non-building constraints, stringent access limitations, or, at the very least, the compulsory suspension of the seasonal operation of the hotel structure.

10. The Analytical Decomposition of Positions of Guarantee: The Dichotomy Between "Duty of Diligence" and "Dutiful Diligence" and the Teleological Convergence of Civil Protection.

On the delicate terrain of selecting subjects invested with a position of guarantee within complex public structures, the jurisprudential ruling under review performs an operation of rigorous conceptual refinement, reclaiming a theoretical distinction of pure doctrinal matrix²⁹, by now stably accepted by the case law of legitimacy³⁰: that between the "duty of diligence" and "dutiful diligence". The first parameter (duty of diligence) refers immediately to the formal sources and the constitutive legal rules that define ex ante the status and subjective position of the guarantor, delimiting his institutional tasks, the domain of his attributions, and his specific sphere of organizational responsibility. The second category (dutiful diligence), conversely, expresses the concrete precautionary rule – attainable also from social sources or technical-scientific experience – which substantiates the intrinsic content of the duty through a specific behavioral and procedural scheme, rigidly finalized to neutralizing or compressing the risk of occurrence of a determined class of harmful events.

The Supreme Court vigorously emphasizes the absolute conceptual and methodological autonomy of these two moments – the formal ownership of the duty and the prescriptive content of the caution – stigmatizing the tendency to operate improper and surreptitious overlaps of horizons. Such an analytical split, stably inserted into the systematic structure of the negligent result-offense, allows to definitively overcome that pan-criminalist orientation, once dominant, which tended to infer automaticity of blame and liability from the mere and formal existence of the position of guarantee (the so-called position-based negligence). In this manner, the hermeneutics of legitimacy ensures a full and fruitful implementation of the constitutional principle of personal criminal liability enshrined in Article 27, paragraph 1, of the Italian Constitution, anchoring the reproach to a personal and genuinely culpable fact.

Under the profile of the dogmatics of the offense, separating the scrutiny over the duty of diligence from that over dutiful diligence requires the trial judge to conduct an anatomical inquiry into the various spheres of managerial, administrative, and organizational responsibility coexisting within the entity appointed to the governance of risk. This allows to perimetrate the area of the criminally relevant already at the objective level of tipicità, clarifying on a logical level the transition from the genetic phase of identifying the guarantors – namely, the holders of the duties of diligence – to the functional phase of defining the concrete applicable precautionary rules, which constitute the fabric of dutiful diligence and necessarily vary in relation to the different domains of precautionary competence.

In the motivational texture of the ruling on the Rigopiano disaster, such a methodological approach is valorized through the full recognition of the heterogeneity of risk areas and the symmetrical subjective competences involved in their management. In this perspective, the primary function entrusted to civil protection organs – regardless of their political or purely administrative extraction – consists in the exclusive and structural governance of risks to the individual and collective safety of the community. As astutely observed by the Bench of legitimacy, the very original denomination of the structures, their institutional ratio, and the finalization of the administrative powers conferred upon them outline a rare and limpid case of immediate coincidence and convergence between the purposes of public action and the criminal law objectives of protecting primary assets. To deny such an attribution of guarantee – the Supreme Court severely concludes – would stand in frontal contrast not only with positive statutory data, but would prove logically paradoxical and self-defeating, as it would end up emptying of all meaning and epistemological efficacy the entire civil protection system (national and regional), structurally appointed to the macro-organizational forecasting and prevention of calamitous risks.

11. The Subjective Measure of Negligence in Complex Organizations: Structural Deficits of Resources, Enforceability of the Precept, and Relational Dynamics Between the Political and Administrative Spheres.

A dogmatic importance of primary significance attaches to the in-depth analysis that the Supreme Bench reserves for the so-called subjective measure of negligence, which serves as an indispensable counterpart to the objective decomposition of the duty of diligence scrutinized up to this point. This motivational juncture develops in reaction to the tight challenges raised by the defenses, which had invoked, as a cause excluding culpability, the chronic "state of deprivation" of human, instrumental, and financial resources in which the regional civil protection department found itself; an organizational and staffing deficit such as to render—in the appellants' perspective—the timely fulfillment of the obligation to draft and adopt the CLPV objectively impossible. On this point, the Supreme Court justices clarify that, even in the face of possible and differing theoretical frameworks, allegations concerning the concrete deficiencies of public structures cannot be summarily expelled from the criminal horizon but must be accurately vetted within the statute of normative-personal culpability, declining specifically in terms of the enforceability or non-enforceability of compliance with the violated precautionary rule. The judgment of enforceability is rooted, indeed, in the very core of the personalistic reproach, evoking the aptitude of the individual subject to conform his conduct to the precept under the historical and contingent conditions in which he found himself operating³¹.

The intrinsic delicacy and complexity of this personalistic scrutiny clearly emerge from the dense operational indications that the Court of legitimacy addresses to the lower court judge upon remand, who is invested with the task of governing inevitably fluid margins of discretion through the adoption of an analytical rigor devoid of concessions to presumptive generalizations. In this perspective, the Supreme Court specifies that, even where the trial judge should deem that the regional officials found themselves in a material impossibility to fulfill the tasks demanded of them due to adverse factual contingencies, such an observation could not in itself exhaust the ascertainment. The criminal judgment cannot exempt itself from macroscopically reconstructing the concrete internal mechanisms through which the public entity distributes and assigns to its bureaucratic departments the resources indispensable for the fulfillment of institutional ends. It is indeed reasonable to presume, according to a consolidated legal-administrative id quod plerumque accidit, that the top political organ, while pursuing macro-strategic and programmatic aims, shapes and activates the management of the activities provided by law on the basis of constant promptings, reports, and the informational coordination with the underlying administrative structures; the latter, moreover, are the sole depositories of a direct, close, and updated knowledge regarding the real operational needs and systemic criticalities of their sector of competence.

12. The Multi-Subject Horizon of Organizational Risk: The Incriminating Function of Article 113 of the Italian Criminal Code, the Statute of Additive Causation, and the Relational Dimension of Negligence.

On the complementary side of the multi-subject physiognomy of the offense, a theoretical reflection of central importance is dedicated by the Supreme Bench to the institution of negligent cooperation³². While condensing the treatment of this institution into motivational passages of dense synthesis—in spite of its intrinsic macro-systemic centrality within a structurally collective and multi-level context—the ruling reaffirms the strict necessity to operate a rigorous selection of individual and single criminal liabilities among the various officials embedded in the regional civil protection service. In compliance with the principle of personal criminal liability enshrined in Article 27, paragraph 1 of the Constitution, the trial judge is designated as the addressee of a strict analytical burden: he is called upon to scrutinize of the co-perpetrators, microscopically weighing the specific institutional role held, the temporal duration of the functional investiture, and the behaviors historically maintained by each employee. This atomistic scrutiny reveals itself to be indispensable for the purpose of ascertaining whether the individual's conduct concretely failed to comply with their official duties and, as a result, was fit to ground an autonomous negligent reproach, normatively understood as the failed removal or omitted compression of latent risk factors. Conversely, no hypothesis of blame can legitimately emerge where the dutiful conduct, although firmly pursued by the agent, remained unfulfilled due to insurmountable external barriers entirely alien to the individual's volitional sphere and not neutralizable even through the diligent and exhaustive performance of the tasks assigned to them.

Under the profile of objective tipicità, the text of Article 113 of the Criminal Code anchors the multi-subject offense to the prerequisite that the harmful result be "caused by the cooperation of multiple persons." Such a literal datum implies that the result of harm or danger must be configured as the final etiological product of the synergistic and coordinated interaction of a plurality of agents; it follows that, for the purpose of the existence of the causal nexus, it is sufficient that each participant introduced historically significant fragments or "portions" of the overall etiological antecedent, cooperating in the genesis of the phenomenological sequence that culminated in the disaster. The rule in question therefore deploys, from the perspective of the Supreme Court, a fundamental incriminating function (or extension of punishability) also within the scope of open-ended result-offenses, allowing to intercept and attract into the criminally relevant area atypical conducts that would otherwise remain unpunished if vetted solely on the basis of the specific offense provision of the special part³³.

The Supreme Court justices thus draw a sharp dogmatic line of division separating the concurrence of independent negligent causes from negligent cooperation proper. In the latter model, the statute of causation emancipates itself from the rigid and traditional paradigm of the condicio sine qua non applied in an isolated manner to each concurrent conduct: in other words, the probatio diabolica is not required that, in the absence of the single atypical behavior, the event would not have occurred at all. Conversely, the burden of etiological demonstration is satisfied where it emerges that each behavior, albeit implemented in asynchronous or stratified temporal segments, exerted a concrete conditioning significance on the production of the historical and concrete event, in the sense that, had it been absent, the disaster would have exhibited significantly divergent morphological, kinetic, and impact properties from those it concretely assumed. On the objective plane, a conduct that performed a conditioning or facilitating function with respect to the material operation of another concurrent participant also acquires full criminal relevance. Such an interpretative option attains solid theoretical legitimacy and immediate empirical confirmation in the intrinsic nature of the negligent cooperative phenomenon, where the common and integrated involvement of subjects in governing the same source of danger justifies the punishability of conducts that, although fragmented, incomplete, or of mere participation, merge and interpenetrate with the typical conducts of others.

As for the psychological side of the offense, the Supreme Court conforms to the consolidated and dominant direction, deeming the mere awareness of concurring in another's material act to be sufficient for subjective tipicità. Such a psychic coefficient does not postulate a prior criminal agreement but rather springs from the very organizational and inter-organic arrangement imposed by law or by operational needs connected to the scientific management of risk, which demand the coordinated action of multiple professional skills. Through a dense obiter dictum, the Supreme Bench highlights how an analogous conclusion regarding the subjective element would be reached even if one wished to embrace the stricter and more restrictive doctrinal thesis, which requires precise awareness also of the properly negligent character of the other's conduct.

13. The Metamorphosis of Foreseeability in the Era of Anthropogenic Climate Change: From the Distinction Between Event and Response Foreseeability to the Technological-Economic Calibration of the Precautionary Rule.

If the analysis conducted so far has highlighted the necessity of an analytical decomposition of positions of guarantee and a rigorous scrutiny of internal relational dynamics within complex organizations, the horizon of negligent liability for territorial risk management clashes today with a systemic crisis factor that is even more radical: the progressive evaporation of traditional parameters of predictability for natural events. There is indeed a widespread and consolidated consensus within the international scientific community that the element most deeply affected and deconstructed by modern anthropogenic climate change is precisely the statute of foreseeability. The exacerbation of the severity and frequency of extreme meteorological phenomena renders the invocation of that classic common law category, according to which a macroscopic event can qualify as a factor "so great that it could not reasonably have been anticipated"³⁴, dogmatically and historically unsustainable today. Precisely to decipher the complex aporias that this scenario pours into the statute of negligence, the most astute North American doctrine, through the reflections of Kenneth T. Kristl, has proposed an illuminating and decisive conceptual division, isolating the dimension of event foreseeability (the intrinsic predictability of the event) from that of response foreseeability (the predictability of the precautionary response³⁵).

Under the first profile (event foreseeability), the scholar notes the synergistic convergence of two macroscopic vectors: on the one hand, extraordinary technological and sensor refinement, capable of minutely monitoring the dynamics of nature and predicting their harmful effects with astonishing accuracy; on the other hand, the objective change in climate cycles induced by anthropogenic activities. The combination of these factors transmutes extreme natural phenomena into widely foreseeable events, and this no longer merely as an abstract "class of events," but in their specific and concrete phenomenological dimension. However, such hyper-foreseeability of the event translates – according to an apparent paradox – into a drastic weakening and crisis of response foreseeability, understood as the prerogative by virtue of which the agent is allowed to demonstrate that the injuries caused were not concretely prognosticable in light of the precautionary efforts concretely deployed by him to neutralize the fury of nature. The deconstruction of this defensive shield generates a paroxysmal pressure upon institutional actors, forced to chase the adoption of precautionary measures with hyperbolic economic and organizational costs just to avert the imputation of liability.

This regressive spiral can be usefully decoded and formalized through the lens of the famous negligence equation developed by Judge Learned Hand³⁶. As astutely recalled by Kristl, the advent of global climate change acts simultaneously by causing a spike in both the variable $P$ (probability of damage, i.e., the statistical probability of the occurrence of harm) and the variable $L$ (severity of damage, namely the destructive severity of the harm itself). From this derives, as a result, an automatic and dizzying rise in the factor $B$ (the burden of taking precautions), understood as the economic, structural, and organizational burden that the guarantor must shoulder to neutralize the risk. The public or private operator thus finds himself burdened with increasingly oppressive and unreasonable duties of prevention in an attempt to mitigate foreseeable natural catastrophes, undergoing a psychological and institutional pressure that induces him to operate according to economically and structurally inefficient action modules, given that determining ex ante the necessary and exact level of $B$ to go free from criminal or civil liability is an extremely arduous, if not entirely chimerical, enterprise.

The core of the problem lies in the circumstance that disturbances connected to climate change exhibit an intrinsically erratic variability in intensity, rendering both the probabilities of occurrence and the correlated levels of damage fluctuating. A radical asymmetry emerges here with respect to the classic jurisprudential watershed of the Carroll Towing case: if in that instance the barge owner was in a position to estimate with sufficient scientific and commercial approximation the risks of a failure of the moorings within a circumscribed port basin, today's administrator or land manager does not possess linear tools to prophesy the exact trajectory or specific violence of a storm or a meteorological cataclysm. Faced with the impossibility of outlining in advance the optimal level of precautionary investments ($B$) due to climatic fluctuations of $P$ and $L$, the safest—albeit economically destructive—strategy for the guarantor will consist in embracing the maximal and geometrically highest possible level of precaution, even if it reveals itself ex post to be entirely disproportionate or redundant with respect to the historical event that will concretely hit the territory. In this way, the traditional Act of God defense ends up incentivizing maximalist and irrational conducts, on the assumption that only the adoption of absolute protective barriers can guarantee that the agent goes free from fault³⁷.

Where the risk is not specifically foreseeable, the cost of prevention ($B$) inevitably tends to outstrip the mathematical product between the probability and severity of the event ($PL$), revealing the dogmatic irrationality of a normative imposition of absolute and totalizing obligations of protection. Hence Kristl's sharply critical conclusion: the intrinsic unpredictability shrouding extreme meteorological phenomena in the era of global warming ends up emptying the institution of natural force majeure (Act of God) of real epistemic significance, rendering the demand that operators zero out risks not specifically calculable ex ante economically unsustainable and logically paradoxical.

In the face of such a destructive outcome, a different hermeneutic perspective has sought to revitalize the institution, valorizing its original physiognomy as a guarantee and incentive. Moving from the rigorous definition of the defense – which postulates the exceptionality, inevitability, and irresistibility of an event not otherwise restrainable through the exercise of due diligence or foresight – it has been suggested to view the Act of God as a formidable propulsive engine aimed at guiding industries and public actors toward the adoption of reasonable precautions to safeguard human lives and the environment³⁸. Under this profile, the expansion of scientific foreseeability, while inexorably compressing the applicative space of unforeseen fatality, virtuously dilates the perimeter of dutiful diligence, directing guarantors toward rational investments in terms of infrastructural resilience, predictive maintenance, and macro-organizational risk planning.

14. Conclusions. Toward an Integrated Theory of Culpable Liability for Natural Disasters in the Era of the Anthropocene: The Redefinition of the Fortuitous Event and the Technological Governance of Risk.

The structured analysis of North American doctrine regarding the Act of God defense opens the door to the formulation of an updated and epistemically revised notion of the "natural fortuitous event". This updated notion is capable of harmoniously integrating with the theoretical framework traced in the present work and reflecting, on the plane of subjective tipicità, the profound transformation wrought by anthropogenic climate change. Climate sciences now demonstrate incontrovertibly that meteorological events characterized by marked severity can no longer be summarily dismissed as pure and pristine natural phenomena situated in a space of total exteriority relative to the sphere of human control and action. On the contrary, the increased frequency, intensified magnitude, and enhanced scientific predictability of storm surges, wildfires, floods, and anomalous heatwaves appear today linked by a bidirectional thread to macroscopic factors of distinctively anthropogenic matrix. Such scientific evidence progressively corrodes the core of the traditional archetype that viewed the natural occurrence as ontologically separate and immune from any form of human responsibility, placing into irreversible crisis the three classic pillars upon which the exculpatory edifice of the Act of God – or of the domestic casus, traditionally rested: namely, an exclusively natural origin, absolute unpredictability, and total irresistibility.

Within this altered macro-systemic scenario, the transatlantic debate reveals a fruitful theoretical tension between resolutely deconstructive impulses and proposals for the functional recharacterization of the institution. On the one hand, Kristl’s reconstruction reveals how the increase in the macro-scientific predictability of extreme events—when combined with the intrinsic, erratic variability of their concrete phenomenological manifestation—risks turning the precautionary response imposed on public or private actors into a conduct that is structurally inefficient from an economic-organizational standpoint. Decoded through the categories of the Hand formula, the simultaneous and synergistic growth of the variables $P$ (probability of damage) and $L$ (severity of damage) ends up driving up the factor $B$ (the burden of taking precautions), triggering the adoption of maximalist, exacerbated, and often disproportionate cautions relative to the actual, concrete level of risk present on the territory. Conversely, the perspective inaugurated by Villa valorizes the literal and positive scope of the Act of God – where the rule demands the intrusion of "unanticipated, exceptional, inevitable, and irresistible" factors that cannot be neutralized through "the exercise of due care or foresight" – reinterpreting the defense as a virtuous normative incentive aimed at stimulating structural investments in prevention, infrastructural resilience, and the inter-temporal planning of risks. In this view, the more scientific progress and the implementation of advanced artificial intelligence models expand the quantitative predictability of natural phenomena, the more the dogmatic area of the "unanticipated" contracts, specularly dilating the boundaries of the "dutiful diligence" demandable from guarantors, whose precautionary content is permanently remodeled by the contribution of algorithmic tools.

This hermeneutic tension is perfectly mirror-like and transposable to the Italian criminal law debate concerning "supervening intervening causes" (pursuant to Article 41, paragraph 2, of the Criminal Code), the "fortuitous event" (pursuant to Article 45 of the Criminal Code), and the liability of the public subject in the management of natural disasters. From this tight comparative analysis emerges the necessity to embrace a renewed and evolutionary notion of the "natural fortuitous event," structured on a two-tiered analytical level. The natural event retains its fortuitous nature – in the descriptive sense of an exceptional and extraordinary factor – exclusively in its localized, microscopic, and instantaneous manifestation, given the impossibility for the guarantor to govern the an, quando, and quomodo of its phenomenological trigger. Nevertheless, the harmful effects deriving from it remain fully imputable to the public official invested with the specific legal duty to govern the latent source of danger springing from the mere macroscopic and statistical predictability of the extreme event. There follows a contemporary definition of the "fortuitous event" as a natural phenomenon which, while remaining unsusceptible to immediate preventive control at the moment of its concrete detachment or immediate onset, exerts no exculpatory efficacy upon criminal liability where the damaging outcomes materialize as the realization of a risk that the public administrator had a legal obligation to foresee, mitigate, and plan for ex ante. Therefore, the mismanagement or culpable inertia in the exercise of such organizational competences, by causing a decisive aggravation of the harmful consequences of the calamitous event (even if originated by natural causes), must be dogmatically equated to the failure to prevent the event itself, finding its definitive ground of imputation in the equivalence clause preserved in Article 40, paragraph 2, of the Italian Criminal Code.

In conclusion, the principles crystallized in the ruling on the Rigopiano disaster and the fruitful dialogue with North American legal reflection allow for the delineation of an integrated theory of culpable imputation in natural disasters. This theoretical model is founded upon the sharp conceptual distinction between contingent danger and structural exposure to risk, the valorization of a differentiated temporality of negligence (distal and proximal), the dogmatic centrality of mediated preventive power, the sufficiency of foreseeability by "class of events", and, finally, the aforementioned reformulation of the natural fortuitous event. To synthesize its essential coordinates, the culpable imputation of offenses materially generated by a force of nature postulates the separation between the event considered in itself, which remains a historically non-imputable factor, and the harmful effects, which convert into a criminal charge whenever they graft onto a typical risk that the guarantor had a duty to govern within his sphere of competence. The unforeseen natural event, devoid of immediate prodromic indices and un-governable in its instantaneous kinetics, does not constitute a supervening cause sufficient by itself to cause the event, since it does not initiate a wholly autonomous and stochastic causal chain, nor does it fall outside the perimeter of the risk that the omitted precautionary rule aimed to govern. The negligent reproach is targeted, then, not at the chimerical inability to halt the kinetic force of nature at the moment of its maximum destructive expression, but rather at the failure to implement, in the strictly antecedent and planning phase, the precautions necessary to contain, attenuate, or neutralize the statistically expected effects of a given class of risks.

In this scenario, the explosive development of predictive technologies and artificial intelligence systems – capable of processing high-resolution scenarios and anticipating the vulnerability coefficients of territories – redefines the area of technologically governable risk, parallelly raising the standard of enforceability for law-abiding conduct and compelling an anticipated and flexible management of systemic fragilities. Ultimately, what emerges is a paradigm of liability that transcends both the antiquated logic of irresistible natural fatality and the narrow perspective of imputation tied solely to the management of localized, on-site emergencies; a model which, by shifting the gravitational center of the criminal charge from the event in itself to the organized and anticipated management of multi-subject and multi-level risk, proves to be the only one capable of coherently measuring up to the inherently extraordinary nature of meteorological events in the era of anthropogenic climate change.