When climate researcher Colleen Golja walked into a nondescript meeting room at Queen Mary University of London last September, she carried a naive but noble expectation: that when humanity eventually confronted the existential necessity of “dimming the sun,” science and reason would dictate the terms of engagement. She imagined a deliberative, evidence-based process where experts would guide global leaders toward an ethical framework for solar radiation modification (SRM)—a controversial suite of technologies designed to reflect sunlight and artificially cool the planet.
She left the simulation three days later in tears.
The experiment, titled Exploring Geopolitical Tipping Points and Climate Cooling Strategies, was not a scientific trial but a “war game.” It brought together foreign-relations experts, military personnel, and former government officials to stress-test how the world might handle the rapid rise of technologies that could reshape the Earth’s atmosphere. What Golja discovered was not a pursuit of planetary salvation, but a bleak, hyper-competitive geopolitical theater where scientific integrity was the first casualty.
The Science of the "Global Thermostat"
Solar radiation modification involves injecting aerosols—typically sulfur dioxide—into the stratosphere to mimic the cooling effects of major volcanic eruptions. While the physics of SRM are well-understood and theoretically capable of lowering global temperatures by half a degree or more, the risks are seismic.
Models suggest that while some areas might cool, others could face catastrophic consequences: the drying of sub-Saharan Africa, intensified tropical storms in the Atlantic, and the "termination shock"—a scenario where, if the spraying stops abruptly, global temperatures could spike with devastating speed. Despite these dangers, the niche field of geoengineering has exploded into a commercial frontier. US-Israeli startup Stardust Solutions recently secured $60 million in funding, and prominent figures like Elon Musk have publicly endorsed the technology, framing it as a "game over" necessity for the future of humanity.
Chronology of a Simulated Collapse
To understand how these technologies might be governed, Danielle Young, an assistant professor of international relations at Leeds University, designed a simulation set across three distinct timelines: the present day, September 2027, and September 2028.
The Present: The Seeds of Distrust
The simulation began with participants representing national governments, NGOs, and tech corporations attempting to draft an international agreement on outdoor research. The atmosphere was immediately poisoned by suspicion. Players representing the United States and China refused to sign any accord that might constrain their “national interest” or allow their superpower rival to gain a technological advantage. Jeffrey Nielsen, a US Army major playing a national security attaché, candidly admitted that for the US, “worse than no deal at all is any deal that favors China.”
September 2027: Escalation and Intelligence Wars
By the second phase, the simulation mirrored the worst impulses of a Cold War-era standoff. Organizers introduced an “intelligence report” suggesting a suspicious aircraft had been spotted near the Bering Strait, linked to a US geoengineering program. Accusations of disinformation flew, and the US, convinced that China was secretly developing its own atmospheric intervention capability, began to aggressively lobby for an international investigation. The talks collapsed entirely after a failed attempt by Beijing to negotiate a technology-sharing program with a player representing SpaceX, which was promptly reported to the US delegation as a hostile act of espionage.
September 2028: The Failure of Diplomacy
By the final session, the simulation had devolved into a zero-sum scramble. Despite the urgency of climate-driven catastrophes—simulated by the organizers to test the players’ resolve—no deal was reached. Instead, participants became embroiled in a dark sub-plot involving a shadowy NGO, the "Climate Futures Cooperative." While it claimed to support scientific monitoring, it was eventually revealed to be a front for fossil fuel interests seeking to normalize SRM as a way to avoid decarbonization. The realization that the "voice of science" was being manipulated by corporate interests marked the final breakdown of the proceedings.
The Geopolitical Implications: "Weather Sovereignty"
The simulation serves as a harrowing case study in what security experts call the “geoengineering arms race.” If one nation decides to act unilaterally to protect its own climate, it effectively seizes control of the global thermostat.
This is no longer purely academic. In March, conservative US think tanks began drafting policy papers urging the Trump administration to prioritize “weather sovereignty” to counter China’s potential advancements. The term represents a paradigm shift: the atmosphere is no longer seen as a global commons to be protected, but as a strategic asset to be dominated.
The UK government, meanwhile, has moved from skepticism to cautious inquiry, with the Ministry of Defense commissioning research into sunlight reflection. While London recently released an official policy paper stating it does not plan to deploy such technology, the mere existence of these programs suggests that global powers are terrified of falling behind in a race they cannot afford to win—or lose.
The Erosion of Scientific Authority
For researchers like Golja, the simulation highlighted a terrifying reality: the scientific community is ill-equipped to navigate the halls of power. Throughout the exercise, Golja’s attempts to inject data-driven insights into the conversation were met with indifference. When representatives did engage with her, it was usually to cherry-pick data that would frame a rival’s proposal as reckless or bolster their own agenda.
“I was just so surprised about how little anyone actually cared about the science,” Golja told WIRED. Her experience reflects a growing frustration among climate scientists who realize that their life’s work is being weaponized in a political context where empirical evidence is subordinate to nationalistic posturing.
The Reality of Fossil Fuel Realpolitik
The role of the fossil fuel industry in the simulation was perhaps the most cynical element. By bankrolling NGOs and using their influence to muddy the waters of "governance," these actors demonstrated how easily the transition to green energy could be undermined by the promise of a "techno-fix." If the world can simply spray chemicals into the sky to cool the earth, the pressure to abandon coal, oil, and gas—the very drivers of the crisis—might evaporate. This dynamic makes SRM not just a risky climate intervention, but a potential lifeline for the status quo.
Conclusion: A Shift to the Local
In the months following the simulation, Golja’s worldview has undergone a profound transformation. She has pinned a note to her office wall, a personal manifesto for living in a world defined by geopolitical selfishness rather than collective wisdom.
She has abandoned her pursuit of informing global policy at the highest levels, viewing it as a futile exercise in an era of “narrow geopolitical self-interest.” Instead, she is returning to her hometown in Connecticut to work with local groups on building tangible defenses: seawalls, coastal buffers, and community infrastructure.
“To try and make a difference where it feels like I actually have traction,” she says.
The London war game proved that while we may have the technical capacity to dim the sun, we lack the diplomatic infrastructure to do so safely. In the absence of a global consensus, the future of the planet is being debated in rooms filled with suspicion, disinformation, and the cold, hard logic of national survival. For those tasked with saving the Earth, the lesson is bitter: when the stakes are planetary, the temptation to play God—or to stop someone else from doing so—may ultimately prove too strong to resist.
