INTRODUCTION
Imagine that a state agency authorises cloud seeding over a drought-affected region. Hours later, the weather system moves. Rain intensifies elsewhere. A farmer’s crop is destroyed by waterlogging. Homes are flooded. The farmer insists the damage was not an “act of God” but the result of deliberate human intervention. The operator replies that the storm would have happened anyway. The law is left to decide whether human beings can be held responsible for rain.
The ensuing dispute exposes an unresolved question in Indian jurisprudence. When humans deliberately intervene in atmospheric processes and that intervention contributes to rainfall that causes downstream harm, the legal boundaries of liability become blurred. The natural event now has a human fingerprint.
The phrases atmospheric usurpation and tort of rain are not established legal doctrines. They are analytical frames for a problem that Indian tort law has not yet confronted directly. The real question is whether familiar doctrines such as nuisance, negligence and environmental liability can respond to an unfamiliar form of human intervention or not?
THE SCIENCE THAT CREATES THE LEGAL DIFFICULTY
To understand the legal problem, we must first define the physical act. Cloud seeding does not create rain from a clear sky. It introduces particles into an existing cloud to influence the process by which water droplets or ice crystals grow and become precipitation. Glaciogenic seeding commonly uses silver iodide or other ice forming agents. Hygroscopic seeding uses salt-based materials to encourage the growth and collision of water droplets.[1]
The effect depends on the cloud. There must be suitable moisture, temperature, cloud structure and atmospheric movement. Even then, the operation may produce no measurable enhancement. Indian research through CAIPEEX in the Solapur region reported an average rainfall enhancement of about eighteen percent across a 100-square-kilometre downwind evaluation area, with higher estimates at some locations.[2] Even so, such findings do not establish that every seeding operation will produce rain or that an operator can choose precisely where it will fall.
Each stage contains uncertainty. A storm may already have been forming. The rain may have occurred without intervention. Wind may carry the cloud elsewhere. Surface flooding may then depend on drainage, soil saturation or construction. This uncertainty is the lawyer’s problem. Tort law depends on causation. If the science cannot confidently attribute rainfall to seeding, how can a claimant prove liability?
INDIA’S FRAGMENTED LEGAL POSITION
India has no identified dedicated central statute creating a comprehensive licensing, liability and compensation framework for peaceful cloud seeding. The DGCA does, however, recognise cloud seeding as a category requiring aircraft-operational permission. That is different from a comprehensive substantive regime governing environmental risk, downstream effects and civil liability.[3] Also, chemical handling, environmental protection, public safety, government procurement and local authority powers may all become relevant depending on the operation.
The Environment (Protection) Act, 1986 gives the central government broad powers concerning the protection of air, water and land.[4] The Air Act, 1981 may become relevant if released substances are present in the atmosphere at harmful concentrations.[5] Neither Act, however, appears to regulate cloud seeding as a distinct activity.
The National Green Tribunal Act offers a potentially important route where the dispute involves environmental damage. The Tribunal may grant relief, compensation and restitution in appropriate cases and must apply the precautionary principle and polluter-pays principle.[6] Its jurisdiction would still depend on the statutory basis of the dispute. Environmental consequences alone do not automatically transform every rainfall claim into an NGT matter.
Karnataka approved a substantial 60-day emergency cloud-seeding programme in August 2026.[7] Pune has explored artificial rain for its dam catchments.[8] Delhi’s attempts to explore artificial rain for pollution control demonstrate that atmospheric intervention is moving from scientific theory into public policy.[9] They also demonstrate its limitations. The success of a project depends on atmospheric conditions that cannot be created by administrative order.
The absence of a dedicated statute therefore creates a regulatory gap, not a legal vacuum.
NEGLIGENCE AND THE PROBLEM OF FORESEEABILITY
Negligence provides the most familiar route. Indian law identifies duty, breach and resulting damage as the core elements of actionable negligence with the damage causally connected to the breach.[10] Foreseeability and proximity inform whether a duty of care arises.[11] Applied here, a duty may arise where an operator can reasonably foresee additional risk to persons or property within a target or downwind area. Breach might lie in seeding unsuitable clouds, ignoring dangerous forecasts or saturated catchments, departing from technical protocols or failing to monitor a foreseeable risk zone. The central difficulty remains causation: the claimant must show that seeding materially contributed to the rainfall related harm rather than merely preceding damage that the natural storm would have caused anyway.
NUISANCE AND THE ALTERED ENJOYMENT OF LAND
Nuisance may provide the most natural starting point for a farmer whose land is flooded or whose crops are destroyed. The claimant would not need to prove ownership of the cloud or atmospheric moisture. The relevant interest would be the use and enjoyment of land. Public nuisance could arise where an operation allegedly causes common danger or obstruction affecting a wider community.
Yet nuisance does not remove the causation problem. The claimant must still show that the defendant’s conduct materially contributed to the interference. Rain falling after a seeding operation is not enough.
The reasonableness inquiry may also become complicated where the operation serves a public purpose such as drought relief or pollution reduction. Public benefit may influence the balance between competing interests. It should not, however, operate as an automatic immunity for physical damage. A project may be socially useful and still be negligently planned or inadequately monitored.
An important distinction is the difference between an intentional act and an intentional consequence. The operator may intentionally seed a cloud without intending to flood a neighbouring farm. That lack of intention does not necessarily defeat nuisance. The focus remains on the substantial interference and whether it was legally unreasonable.
THE PARADOX OF THE ACT OF GOD DEFENCE
The Act of God defence traditionally concerns extraordinary natural forces that could not have been foreseen or resisted by reasonable human care.[12]
Its application becomes difficult when the defendant deliberately intervened in the atmospheric system immediately before the event. The claimant’s argument is simple: a defendant should not rely on the purely natural character of an event after choosing to influence the process that produced it.
The defence would not automatically disappear. The operator could still argue that the storm was extraordinary, that the seeding had no material effect or that the damage would have occurred anyway. The real issue would be whether human intervention contributed to the damage and whether reasonable precautions could have reduced the risk.
Indian courts have previously held that normal, foreseeable monsoon rains cannot qualify as an Act of God.[13] Deliberate seeding may make some precipitation foreseeable but liability should turn on whether the specific downstream harm and the operator’s material contribution to it were reasonably foreseeable. The better approach is partial de-naturalisation: human intervention does not make the entire storm artificial but prevents a proven human contribution from being characterised as purely natural.
STRICT LIABILITY AND HAZARDOUS ACTIVITY
Strict liability under Rylands v Fletcher applies where a person brings onto land something likely to cause mischief, makes a non-natural use of the land and that thing escapes and causes damage.[14] The doctrine, however, is subject to recognised exceptions. Cloud seeding does not fit comfortably within this framework because atmospheric dispersal does not readily resemble accumulation and escape from land. By contrast, the Supreme Court in M.C. Mehta v Union of India formulated the rule of absolute liability for enterprises engaged in hazardous or inherently dangerous activities, imposing an absolute and non-delegable duty without the Rylands exceptions.[15] Cloud seeding should attract that rule only if the operation itself qualifies as hazardous or inherently dangerous and the harm results from that hazardous character; the mere use of silver iodide or enhanced rainfall would not establish this.
WHEN THE STATE MAKES RAIN
Where the State conducts or commissions the operation, the analysis changes. A government project may generate claims in negligence, nuisance or public law. Article 21 could become relevant where State action foreseeably threatens life, health or a safe environment. Article 14 may matter if the project is arbitrary, opaque or distributes atmospheric risks without rational safeguards. Article 300A may also be implicated where State action amounts to deprivation of property otherwise than by authority of law.[16]
Public purpose does not immunise the State. In private law, where the State’s own act creates or increases a foreseeable risk, negligence may impose a duty of reasonable care, but breach and causation must still be proved. Separately, public-law compensation may be available for an established fundamental-rights violation, independently of a private tort claim.[17] Risk assessment, monitoring and warnings should therefore be analysed within these distinct frameworks.
The United States requires federal reporting of covered weather modification activities, while some states impose licensing, permitting and financial responsibility requirements.[18] China regulates weather modification through a more centralised meteorological framework.[19] Internationally, the ENMOD Convention prohibits certain military or other hostile uses of environmental modification techniques but expressly preserves peaceful uses.[20] It therefore does not provide the governing liability regime for ordinary domestic cloud seeding.
CONCLUSION
Foreign experience suggests that reporting, licensing and monitoring are more realistic first steps than declaring ownership over clouds or inventing a new atmospheric tort. The United States requires reporting of weather modification activities and several states impose additional licensing and financial responsibility requirements. China has developed a more centralised administrative system.
India could adopt a modest framework requiring registration, disclosure of materials and locations, scientific eligibility criteria, operational records, downstream notification, severe weather suspension rules and independent evaluation. Operators could also be required to maintain liability insurance or contribute to a compensation pool. These measures would address the most serious weakness in future litigation: the lack of reliable evidence.
“Atmospheric Usurpation” is therefore best understood not as a doctrine but as a warning. Human intervention should attract tortious responsibility where the downstream harm was reasonably foreseeable, scientific and operational evidence shows that seeding made a measurable and material contribution to that harm, and the causal connection is sufficiently proximate. Mere temporal sequence should not suffice.
Author(s) Name: Adityasinh Ranjitsinh Ghatge (New Law College, BVDU, Pune)
References:
[1] ‘WMO Statement on Weather Modification’ (World Meteorological Organization, 14 June 2025) <https://wmo.int/content/wmo-statement-weather-modification> accessed 25 August 2026
[2] Thara Prabhakaran et al., ‘CAIPEEX: Indian Cloud Seeding Scientific Experiment’ (2023) 104(11) Bulletin of the American Meteorological Society <https://journals.ametsoc.org/view/journals/bams/104/11/BAMS-D-21-0291.1.xml> accessed 10 September 2026
[3] ‘Aircraft Operations—Permissions: Cloud Seeding’ (Directorate General of Civil Aviation) <https://www.dgca.gov.in/digigov-portal/?page=civilAviationRequirementPDF> accessed 25 August 2026; ‘Parliament Question: Cloud Seeding’ (Press Information Bureau, 23 July 2025) <https://www.pib.gov.in/PressReleaseIframePage.aspx?PRID=2147269&lang=2®=48> accessed 25 August 2026
[4] Environment (Protection) Act 1986
[5] Air (Prevention and Control of Pollution) Act 1981
[6] National Green Tribunal Act 2010
[7] ‘60-day cloud-seeding in Karnataka gets nod’ The New Indian Express (23 August 2026) <https://www.newindianexpress.com/states/karnataka/2026/Aug/23/60-day-cloud-seeding-in-karnataka-gets-nod> accessed 25 August 2026
[8] Ajay Jadhav, ‘Pune Municipal Corporation explores artificial rain to boost dam storage amid water crisis’ The Indian Express (29 June 2026) <https://indianexpress.com/article/cities/pune/pune-municipal-corporation-explores-artificial-rain-to-boost-dam-storage-amid-water-crisis-10763463/> accessed 25 August 2026
[9] Parliament Question: Cloud Seeding (n 3)
[10] Jacob Mathew v State of Punjab & Anr (2005) 6 SCC 1
[11] Rajkot Municipal Corporation v Manjulben Jayantilal Nakum & Ors (1997) 9 SCC 552
[12] Vohra Sadikbhai Rajakbhai & Ors v State of Gujarat & Ors (2016) 12 SCC 1
[13] Ibid
[14] Rylands v Fletcher [1868] LR 3 HL 330
[15] M C Mehta & Anr v Union of India & Ors (1987) 1 SCC 395
[16] The Constitution of India 1950, arts 14, 21 and 300A; E P Royappa v State of Tamil Nadu & Anr (1974) 4 SCC 3; Subhash Kumar v State of Bihar & Ors (1991) 1 SCC 598
[17] Rajkot Municipal Corporation v Manjulben Jayantilal Nakum & Ors (1997) 9 SCC 552; Smt Nilabati Behera Alias Lalit Behera (Through The v State of Orissa & Ors (1993) 2 SCC 746
[18] 15 USC, s 330a; Wash Rev Code, ss 70A.10.060 and 70A.10.130; Tex Agric Code, s 301.101
[19] Meteorology Law of the People’s Republic of China 1999
[20] Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques 1976