"With the ongoing failure of emissions reduction to adequately address growing atmospheric carbon dioxide (CO2), increasing attention has focused on the possibility of conducting CO2 removal (CDR) from the atmosphere (‘negative emissions’). Indeed, modelling suggests that hundreds to thousands of gigatonnes (Gt) of CO2 will need to be removed over this century depending on global mean temperature goals and the success of emissions reduction."

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"The United States joined Saudi Arabia to derail a U.N. resolution that sought to improve the world’s understanding of potential efforts to lace the sky with sunlight-reflecting aerosols or use carbon-catching fans."

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"New technologies that block solar radiation or suck CO2 out of the atmosphere could help tackle global warming. Switzerland is hoping for an international assessment of the opportunities and risks of so-called geo-engineering."

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"The United States and Saudi Arabia have hamstrung global efforts to scrutinise climate geoengineering in order to benefit their fossil fuel industries, according to multiple sources at the United Nations environment assembly, taking place this week in Nairobi."

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