Phasing out greenhouse gas emissions entirely by mid-century is possible, and promising trends are emerging. But the next five to ten years will be the real test of whether we can make that happen.
Despite advances in technology, carbon capture and storage could be unsettled by renewable upstarts.
Sometime soon we'll need to take more carbon out of the atmosphere than we emit – but how?
A new method for creating a form of graphene with carbon dioxide sucked from the air has been announced with misleading claims.
Like it or not we are going to have to figure out how to suck lots of carbon out of the atmosphere.