‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | Raymond Pierrehumbert, Julia Slingo, Michael Mann and Valerie Masson-Delmotte

Do we really want to play dice with our planet?A series in the Guardian recently declared “it’s time to talk about geoengineering.” So let’s talk about it. And 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.Solar geoengineering proposals – reducing sunlight – have received the most attention, but a host of desperate schemes have been proposed in an eff...