Executive Overview
When climate researcher Colleen Golja stepped into a meeting room at Queen Mary University of London last September, she walked in with a simple, foundational conviction: that when humanity finally approached the precipice of engineering the planet’s thermostat, science and objective reason would command a seat of honor at the negotiating table. She envisioned a sober, rational discourse where global experts would codify ethical parameters for solar geoengineering, safeguarding the biosphere for future generations.
"I thought that would be such an easy thing," Golja reflects. "Like, we can all agree to do ethical research and make sure it’s for the better of all humans. And boy, was I wrong."
Golja was participating in Exploring Geopolitical Tipping Points and Climate Cooling Strategies, a pioneering war-gaming simulation designed to stress-test humanity’s diplomatic architecture against the emergence of radical climate-intervention technologies. Brought together by Danielle Young, an assistant professor of international relations at Leeds University, the exercise convened dozens of foreign-relations experts, defense personnel, scientists, and former government officials. Their objective was stark: navigate the chaotic, high-stakes international fallout of Solar Radiation Modification (SRM)—a suite of speculative technologies engineered to cool the Earth by reflecting sunlight back into space.
What transpired over the course of the multi-day simulation stunned its participants and shattered naive assumptions about global cooperation. Rather than uniting to manage a shared planetary crisis, the room fractured along lines of profound distrust, nationalist posturing, and covert economic opportunism. Strategic competition, state sovereignty, and zero-sum paranoia completely eclipsed scientific evidence. For Golja and other technical advisors, the simulation served as a chilling preview of a near-future climate arms race—one driven not by a collective desire to heal the planet, but by the terrifying imperative of refusing to fall behind a rival superpower.
Detailed Chronology: Anatomy of a Simulation Breakdown
The war game was structured across simulated temporal milestones: the present day, September 2027, and September 2028. Set within the framework of a hastily convened United Nations committee tasked with governing emerging SRM technologies, the exercise intentionally withheld perfect information from the players. Participants were forced to make consequential decisions under conditions of deep uncertainty, mirroring the fog of actual geopolitical crises.
Phase 1: The Collapse of Consensus (Present Day)
The tone of the simulation was established immediately during the opening session. As delegates attempted to draft an international treaty governing outdoor experimentation and research transparency, ideological gridlock took hold. Representatives assigned to the United States and China swiftly declared that they could not—and would not—sign any binding accord that subordinated their national interests or handed a technological edge to their primary geopolitical adversary.
Major Jeffrey Nielsen of the US Army, playing a national security attaché, summarized the prevailing tactical mindset: "Worse than no deal at all is any deal that favors China."
The tension quickly erupted into a full-scale diplomatic confrontation when game organizers handed Russian delegates a simulated intelligence report. The report claimed Russian forces had intercepted an aircraft near the Bering Strait linked to an unauthorized US geoengineering research program. The US team—who were indeed executing clandestine research flights within the simulation’s parameters—vehemently dismissed the accusation as a hostile disinformation campaign.
Paranoia escalated further when Beijing’s delegates attempted to insert clauses into the draft treaty protecting past, unacknowledged experiments from retroactive penalties. Shortly thereafter, Chinese representatives approached a player roleplaying a SpaceX executive, floating the prospect of a bilateral technology-sharing partnership. True to the competitive dynamics of the exercise, the SpaceX player instantly reported the overture to the US delegation, which demanded a full international investigation. As mutual recriminations flew, the talks collapsed entirely. The Canadian representative somberly characterized the outcome as a "humiliating defeat."
Phase 2: Escalation and the Specter of Rogue Testing (September 2027)
As the simulation advanced to 2027, the operational environment degraded further. Participants were hit with a barrage of simulated global climate disasters—crippling European heatwaves, prolonged mega-droughts, and escalating ecological distress. Yet, these real-world pressures were largely ignored by the policymakers in the room, who remained fixated on intelligence leaks, security threats, and the operational capabilities of their rivals.
During this phase, reports surfaced regarding the detection of a massive aerosol plume in the stratosphere. In the hidden mechanics of the game, this plume was the result of a covert joint test conducted by the US and Saudi Arabia utilizing technology developed by Stardust Solutions, a private geoengineering startup.
The revelation sparked a scramble for observational data. Governments desperately needed reliable monitoring systems—satellites and atmospheric sensors—to prevent adversaries from conducting unilateral, large-scale climate interventions in secret. Sensing an opening, a player representing an NGO known as the Climate Futures Cooperative approached Colleen Golja, offering substantial financial backing to fund her proposed scientific monitoring framework.
Phase 3: The Fossil Fuel Realpolitik (September 2028)
The final phase of the simulation delivered its most devastating psychological blow to the scientific advisors. It was revealed that the Climate Futures Cooperative was not an independent environmental watchdog, but a front organization covertly backed by major fossil fuel interests and petro-states.
Game designers had baked this variable into the scenario to reflect a stark economic reality: fossil fuel producers and high-emission nations share a profound vested interest in promoting SRM technologies. If solar geoengineering can artificially lower global temperatures, it removes the existential pressure for an immediate, mandatory transition away from coal, oil, and gas extraction.
The shadowy NGO had spent the entirety of the simulation subtly sowing discord, derailing procedural votes, and undermining consensus-building efforts. By timing their financial offer to Golja precisely when scientific oversight was most desperately needed, they effectively cratered her credibility and fractured the singular voice of empirical reason in the room. Exhausted, isolated, and profoundly disillusioned, Golja broke down in tears as the final session dissolved without a single ratified agreement.
Supporting Context & Metrics: The Science and Economics of SRM
To understand the ferocious urgency and deep paranoia driving the war game, one must examine the underlying mechanics, promises, and terrifying risks of Solar Radiation Modification.
What is Solar Radiation Modification?
SRM encompasses a variety of speculative technological proposals designed to counteract anthropogenic global warming by artificially increasing Earth’s albedo—its capacity to reflect incoming solar radiation back into the vacuum of space. The most heavily researched method involves stratospheric aerosol injection (SAI): deploying specialized aircraft, tethered balloons, or naval artillery to disperse millions of tons of sulfur dioxide, calcium carbonate, or engineered particulate matter into the stratosphere.
The conceptual model is empirically proven by nature. Cataclysmic volcanic eruptions—such as the 1991 eruption of Mount Pinatubo in the Philippines—inject massive quantities of sulfur dioxide into the upper atmosphere, forming a reflective sulfate aerosol layer that temporarily depresses global average temperatures by approximately 0.5 degrees Celsius.
The Perils and Asymmetries of Cooling
While the cooling efficacy of SRM is widely accepted by atmospheric physicists, the secondary systemic effects remain fraught with catastrophic uncertainty:
- Precipitation Disruptions: Advanced climate models indicate that artificial cooling would alter global hydrological cycles, potentially triggering severe, prolonged droughts across sub-Saharan Africa and intensifying tropical cyclone activity in the Atlantic basin.
- The Termination Shock Trap: Unlike carbon dioxide removal, which permanently extracts greenhouse gases from the atmosphere, SRM treats only the symptom of global heating, not the root cause. If an active geoengineering program were abruptly halted due to war, economic collapse, or political instability, global temperatures would experience an instantaneous, violent rebound—surging upward at a rate far exceeding natural adaptation thresholds for ecosystems and human agriculture.
The Commercial Gold Rush
Until recently, SRM was treated as a fringe theoretical sub-discipline within climate science. That academic isolation has evaporated under the heat of venture capital and commercial enterprise:
- Stardust Solutions: In 2024, the US-Israeli geoengineering startup secured $60 million in venture funding. In May of that year, the firm publicly detailed a proprietary suite of delivery systems designed to enable precise, on-demand global temperature regulation.
- Corporate and Billionaire Backing: Prominent figures have begun openly championing the necessity of technological intervention. In August, Elon Musk took to social media platform X to declare: "Space satellites to control temperature and massive geo-engineering will be needed or it will be game over."
According to Cynthia Scharf, a former United Nations climate advisor, global society vastly underestimates the timeline for governance: "It’s not 15 years from now; it’s in the next decade, easily."
Official Statements and Policy Shifts
The fictional anxieties explored in the London war game are rapidly materializing within real-world halls of power, defense ministries, and think tanks.
The Shift in Western Defense and Policy
- United States Think Tank Memos: In March, prominent conservative US policy institutes published strategic briefs urging the incoming Trump administration to seize geopolitical leadership in SRM research to counter China’s technological footprint. One policy paper coined a distinctly nationalist terminology for the domain: "Weather sovereignty."
- United Kingdom Ministry of Defense: Investigative reporting revealed that the UK Ministry of Defense contracted specialized deep-tech security consultancies to analyze the national security implications of sunlight-reflection technologies.
- The UK Government’s First Official Policy Stance: Following these security assessments, the British government released its inaugural official policy framework regarding SRM. While the document grants formal backing for continued academic research, it draws a hard line on deployment, stating unequivocally that the UK does not support, nor plan to pursue, active geoengineering deployment.
Industry Perspectives on Sovereignty
Stardust Solutions CEO Yanai Yedvab argues that commercial entities are simply acknowledging the immutable laws of international relations. While his firm maintains that it will not engage in large-scale outdoor testing or deployment without established international governance, Yedvab remains clear-eyed about human nature:
"We are developing a very powerful tool. When you develop this kind of powerful technology—and you have many precedents—national interests will play out. We’re not naive about it."
Future Outlook: Navigating a World of Strategic Self-Interest
The Leeds University simulation was never designed to serve as an infallible crystal ball; its outcomes were shaped by the specific parameters of the game design and the backgrounds of its participants. Critics of the exercise note that multilateral UN bodies often make poor proxies for bilateral great-power negotiations between heavily armed nuclear states.
Nevertheless, the experimental run in London captured a profound, unsettling truth about the intersection of climate desperation and geopolitical competition. In their official post-game report—sponsored by the UK government-funded Advanced Research and Invention Agency (ARIA)—the researchers concluded bluntly: "Strategic competition and state sovereignty drove the simulations, not climate concerns."
For Colleen Golja, the simulation served as a definitive turning point in her professional trajectory. As planetary boundaries collapse—exemplified by horrific real-world disasters like the catastrophic Tibetan-Nepali border glacier collapse that claimed over 1,450 lives—the window for rational, science-led global governance is slamming shut.
Rather than remaining in the theoretical sphere of international climate diplomacy, Golja has pinned a new personal mandate to her office corkboard. She plans to step away from global policy debates and return to her small coastal hometown in Connecticut. There, she intends to apply her scientific expertise directly to local adaptation efforts—building seawalls and coastal erosion buffers to protect her immediate community against an unyielding tide.
"To try and make a difference where it feels like I actually have traction," Golja reflects. After witnessing firsthand how easily human vanity and great-power paranoia can hijack the fate of the biosphere, pursuing science in the hope of informing global decisions has lost its abstract appeal. "Now it feels a little bit more personal."
