I Want to Talk About Solar Geoengineering and You Should Too!
It’s been a little over a month since the Federation of American Scientists’ (FAS) inaugural panel on Climate Interventions at DC Climate Week, hosted alongside the Chesapeake Climate Action Network…and I’m still thinking about it.
Why? Because with our climate rapidly deteriorating, the idea that there’s an underresearched suite of technologies that could buy us more time to decarbonize and save countless lives is one that sticks with you.
Sure, shooting particles into the stratosphere to reflect sunlight back into space, or spraying seawater on glaciers to stop them from falling into the ocean, sound like ideas from a science fiction novel. But so does New Orleans falling into the ocean, or extreme heat making parts of the world unlivable, or (more nerdily) Atlantic meridional overturning circulation (AMOC) collapse. These things are all now in the realm of the possible – or already happening. So what do we do about it?
For one, I think we hear out the experts that take these technologies, collectively known as “climate interventions” or “climate stabilization” approaches, seriously. Some of those experts spoke on the DC Climate Week panel and gave me the brain worm that is this blog.
- Andrew Light, Former Assistant Secretary of Energy for International Affairs and Distinguished Fellow at the University of Chicago Institute for Climate and Sustainable Growth
- Shuchi Talati, Executive Director of Alliance for a Just Deliberation on Solar Geoengineering
- Natasha Vidangos, Associate Vice President, Innovation and Technology, at the Environmental Defense Fund
- FAS’ very own Hannah Safford, Associate Director of Climate and Environment
The panelists made one thing loud and clear: we need better tools to respond to the climate crisis, as well as transparent, equitable research governance frameworks for developing them.
Climate Interventions 101
If you’re new to the climate intervention space, welcome! The TL;DR: if we can’t stop the most catastrophic impacts of climate change with current tools quickly enough, then we need a bigger toolbox.
To put it another way, think of climate interventions as a life jacket instead of a rescue boat. In this metaphor, the rescue boat is continued clean energy deployment and carbon capture, entrepreneurial re-thinking of our climate laws and policies, and a holistic approach to decarbonization that’s grounded in transparency, equity, and legitimacy. Climate interventions are what keep you afloat long enough for the real help to arrive.
The panelists focused on one specific type of climate intervention: solar geoengineering, also called Solar Radiation Modification (SRM). SRM aims to artificially lower global temperatures by reflecting incoming sunlight back into space, thereby potentially stalling the worst impacts of climate change. There are three main types of SRM approaches: Stratospheric Aerosol Injection (SAI), Marine Cloud Brightening (MCB), and Cirrus Cloud Thinning (CCT). SAI is usually the subject of most conversation given that it has by far the greatest potential to affect temperatures on a global scale.
Research ≠ Deployment
The panelists were clear that talking about the need for SRM research isn’t the same as calling for deployment (i.e., ultimate large-scale use of SRM techniques). Take hurricanes – Meteorologists study hurricane patterns not because they want a hurricane to make landfall, but to understand what might happen if it does. You can support the research without being pro-hurricane. Same idea here.
Since there’s no world in which we don’t benefit from learning all we can about these technologies and their potential risks and benefits, research should be nonnegotiable.
The Big Deal About Research Governance
The next question is: who’s in charge and gets to make the decisions about how we do said research? That’s what “research governance” is about. Research governance sounds like one of those abstract terms that elites use to confuse people but really just refers to the nuts and bolts of how research into SRM (and other climate interventions) gets done – what the regulations are, who’s involved, and what principles inform decision making.
The panelists felt strongly that the “who” of research governance is almost as important as the “what.” A global intervention needs global involvement in the research design. Impacted countries and communities need a seat at the table to shape the work and think collectively about how research moves forward.
Whether impacted communities are involved can be the difference between success and failure. Two attempted outdoor experiments, SCoPOx (at Harvard) and SPICE (in the UK), failed to secure public buy-in from the beginning. Both were shut down and became unnecessarily politicized. Australia offers a counter-example. That country has successfully carried out MCB research without much backlash because it prioritized public engagement and targeted something tangible the public cares about (protecting the Great Barrier Reef) in its outreach. When you hit people in their hearts, they’re more likely to listen.
Multilateral Action, Please!
SRM is global in nature, so it matters how other countries are approaching (or ignoring) this issue. As of now, there’s no multilateral governance framework for climate interventions, or even an appropriate forum for developing one. Which is a little crazy considering there seems to be a multilateral group for almost everything. Given this, a path forward may be for small groups (or “clubs”) of countries to begin setting norms, standards, and research frameworks together, similar to other international science coordination. For example, the Global Methane Pledge is a coalition of countries that agree to take voluntary action to reduce global methane emissions. A similar research coalition could form around SRM, or climate interventions more broadly.
Research requires money. Currently, only the United Kingdom (UK) funds climate interventions research at any significant scale. And even the UK’s program, structured under their Advanced Research and Invention Agency (ARIA), has a budget of only about $76 million USD – a minuscule amount compared to other critical research areas. Multiple countries working together could pool resources to increase the amount of funding in climate intervention research, and probably should, given what I’ll call “The Stardust Situation”. That situation is the reality that when the government leaves gaps, the private sector sometimes fills them. And in the SRM space, an American-Israeli private company called Stardust is developing its own particles for SAI to fill the gap. Stardust has raised about $60 million to date – almost the entire budget of ARIA.
One could argue that private-sector innovation is good, and there’s some truth to that. But as Hannah Safford put it recently, we might also “not like the choices” that the private sector makes without any guardrails or shared goals and norms around SRM research and experimentation. After all, few people these days are loving our unregulated AI overlords. But, and I’ll quote Hannah again, the United States “government has shown more interest in banning climate science than in thoughtfully governing emerging technology.” The panel agreed it’s past time for this to change.
Building Something New
To sum it up: research can’t responsibly proceed without governance, but governance shouldn’t strangle research. Figuring out that balance is the work ahead in the SRM space. The path is filled with tough questions, but the exciting thing is that we have an opportunity to respond right the first time, since we already know what doesn’t work. So many policy areas are either deeply politicized and/or cluttered with outdated laws or old, creaky institutions. This isn’t the case for climate interventions. Here, we can build new frameworks for climate interventions research and governance that have equity, transparency, and legitimacy baked in from the start. We don’t have to fit a square peg into a round hole. That’s something I won’t stop thinking about anytime soon.
Interested in FAS’ or CCAN’s work on climate interventions? Visit the FAS & CCAN websites.
If you’re new to the climate intervention space, welcome! The TL;DR: if we can’t stop the most catastrophic impacts of climate change with current tools quickly enough, then we need a bigger toolbox.
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