embracing science fiction

“Carbon-eating trees” certainly sound nice. But how, exactly, would they work? Dyson has never elaborated, and neither the Times nor The Atlantic seems to have asked. Would the trees take up CO2 while they’re alive, and release it back into the atmosphere only slowly, once they’re dead? If so, the world already has those sorts of trees. They are called, well, trees.

- "SuperFreakonomics" and climate change