One area where activity has particularly picked up in recent months, and where the attendant questions are especially vexing, is solar geoengineering. It’s also forcing a public debate over what actions are appropriate or permissible in the face of such an ominous looming threat: Is it now okay to throw soup at Van Goghs? To shut down fossil-fuel plants before we’ve replaced them? To demand that poor countries halt their economic progress? To mine the oceans for battery materials, or to coat seabeds with biomatter? A growing sense of climate danger-and, for many, climate doom-has accelerated humanity’s responses in numerous ways: driving increasingly strict or generous public policies, encouraging more investment into clean technologies, and pushing corporations to take more meaningful steps to address emissions.
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