Humans may not be doing their part to beat back the threat of climate change. But while we’re arguing, plants are getting busy: “Every year, you see, humans pump many billion tons of the stuff into the atmosphere, but not all of it stays there to warm the planet. A very significant fraction ends up getting absorbed by the ocean. Another large fraction gets pulled in by land-based plants which use it for photosynthesis.” And the plants seem to have gone into overdrive.