Atmospheric carbon removal

Climate change is primarily caused by the accumulation of carbon dioxide (CO2) in the atmosphere due to human activities. Stopping dangerous warming requires both aggressive emission cuts and the large-scale removal of carbon dioxide already in the atmosphere. Emission reduction is well understood, but what are the established and emerging techniques for carbon removal? How do these methods compare, and to what extent can they be a solution? What challenges remain to be overcome?

Document written in collaboration with the UK-based NGO Carbon Gap.

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