FT Rethink

Solar radiation management could cool the planet. But at what cost?

2023 was declared the hottest year ever recorded, and our planet continues to heat up. It’s cast the spotlight on one of the more niche climate cooling solutions, solar radiation management, or SRM.

SRM works on the principle that the Earth can be cooled by reflecting some of the sun’s rays back into space. But as the FT’s Aime Williams explains, it could come with significant risks.

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FT Rethink

FT Channels, a partnership destination that combines impactful and enriching multimedia content to spark curiosity and encourage discovery. Each vertical brings expert insights from the Financial Times and our Partners into the most pressing issues of our time.


FT Rethink series focuses on the people, technology, strategies and systems moving us from an economy that is wasteful, idle, lopsided and dirty towards one that is circular, lean, inclusive and clean. The channel alternates between independent reporting from FT journalists and business perspectives from Lombard Odier