Solar geoengineering poses significant planetary risks that require expert warnings and careful consideration.

Termination shock’: trust our expert warnings on geoengineering’s planetary risks | New op-ed in the @guardian by Ray Pierrehumbert, Julia Slingo, Valerie Masson-Delmotte (@valmasdel) and yours truly: https://www.theguardian.com/commentisfree/2026/jun/19/solar-geoengineering-risk-to-planet-earth?utm_term=Autofeed&CMP=bsky_gu&utm_medium=&utm_source=Bluesky#Echobox=1781864790

‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | Raymond Pierrehumbert, Julia Slingo, Michael Mann and Valerie Masson-Delmotte "let us start with some simple truths about this cluster of techno-optimistic “quick fixes” which purport to somehow offset our slow progress towards zeroing out planet-warming carbon emissions." Excellent - a reality check on the growing geoengineering bandwagon is needed urgently. https://www.theguardian.com/commentisfree/2026/jun/19/solar-geoengineering-risk-to-planet-earth?CMP=share_btn_url