The Dangerous Politics of Climate Engineering

Climate scientists around the world are now projecting warming of at least 2.5°C within this century. As U.S. and other wealthy governments fail to phase out fossil fuels, investments in climate engineering—technological interventions to manipulate the climate—have been increasing.

We’re seeing this play out in real time in Massachusetts. This August, a team of researchers plans to dump 6,600 gallons of sodium hydroxide into ocean waters just south of Martha’s Vineyard. Next summer, they intend to dump a staggering 66,000 gallons of sodium hydroxide into the Gulf of Maine. They call it the “LOC-NESS” experiment, and it’s intended to test a new geoengineering technique called “ocean alkalinity enhancement.” They plan to make ocean waters less acidic, causing them to draw carbon dioxide from the atmosphere. They hope if alkaline substances were dumped at truly massive scales it could offset a portion of human caused emissions.

There are many serious concerns with manipulating the ocean environment in an attempt to address climate change. Sodium hydroxide is a dangerous substance that causes chemical burns on contact with humans or marine life. The dumping locations are home to at least eight endangered species, including the critically endangered North Atlantic right whale. This experiment will alter the ocean environment, creating new risks to many already threatened marine species.

Rather than supporting manipulations of Earth’s systems, humanity needs to deploy existing solutions that center ecological integrity, environmental justice, and human rights.

Dozens of reputable studies also cast doubt on the safety and efficacy of ocean alkalinity enhancement. At least two gigatons of alkaline material would have to be dumped continuously by every bulk carrier and cargo ship in the world in order to capture only 4% of current CO2 emissions. Additionally, mining on the scale the project requires, as well as transporting the mined materials to ships for dumping, likely causes more greenhouse gasses to be emitted than it removes from the atmosphere after it’s dumped in the ocean.

The idea that humans can manipulate the Earth to reduce the risks of climate change relies on and perpetuates a futile sense of human control and domination over our planet. This false sense of control emerges directly from the technological optimism of billionaires who are enthusiastically advocating for more geoengineering research, like those funding the LOC-NESS project. In addition to wasting money that could instead be used to fund wind and solar projects already proven to reduce emissions, climate engineering diverts attention away from the equitable phaseout of fossil fuels that is urgently needed to avoid further climate catastrophe.

The scientists involved in the LOC-NESS experiment say they are not advocating for immediate deployment of marine geoengineering—just to develop the technologies and information that society may need in the future if we do decide to geoengineer. However, the history of multiple technological advances shows that after a technology is developed, the scientists involved lose control over what happens next. This disconnect is clearly demonstrated in the film Oppenheimer, when the U.S. military comes to transport the nuclear bomb away from Los Alamos. In a telling moment, Oppenheimer asks to be kept up-to-date about when the technology will be used. The military general responds with a clear message—the job of the Los Alamos scientists is done and they will no longer be involved. As the saying goes, history tends to repeat itself.

Despite the powerful influence of those advocating for climate engineering, concerned citizens around the world are mobilizing against it. The United Nations Convention on Biological Diversity has established an effective moratorium on geoengineering, making exceptions only for small-scale research projects conducted in a controlled environment—which the LOC-NESS experiment is not. Indigenous People in particular have led resistance to many geoengineering experiments, which frequently target Indigenous lands for deployment.

Rather than supporting manipulations of Earth’s systems, humanity needs to deploy existing solutions that center ecological integrity, environmental justice, and human rights. Recognizing that climate chaos is a symptom, and not the core problem, is essential for effective transformative change. We must oppose projects like LOC-NESS and focus on guiding our world toward a healthy, just, and sustainable future.