Geoengineering gains momentum, but governance is lacking, critics say

As climate change rapidly advances, with 2023 and 2024 vying for the hottest year on record, solar radiation modification (SRM) geoengineering strategies are gaining momentum as short-term climate fixes. These especially include proposals for the release of cooling aerosols into the Earth’s lower stratosphere.

But preliminary geoengineering efforts (represented by lots of computer modeling and a smattering of small-scale field tests) are proceeding against a backdrop of public mistrust and resistance, while also provoking urgent calls by experts for national and international policies and regulatory structures to govern this burgeoning field.

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