The Intergovernmental Panel on Climate Change tells us that in order to maintain a livable climate, we need to not only stop carbon dioxide from entering the atmosphere but also remove billions of tons of the stuff annually by midcentury. Plants, our old allies, can absorb only so much. Far-out ideas like "ocean fertilization" risk trashing entire ecosystems just to store some carbon. Carbon capture can't reverse all our past emissions, but it might help. Head to the link in our bio for a look at the leading technologies—promising, hopeful, yet also troublesome: https://sc.org/3B5kbG4