From the CO2Science Archive: The common name for Orontium aquaticum L. sounds like a James Bond film. Goldenclub. (Cue catchy theme music about “the plant with the Midas touch”.) Except it’s not British, it’s an American plant that grows in ponds, streams and shallow lakes. Which makes it superficially odd that another of its names, less sexy, is Never-wet, since it lives in water, but apparently its surface repels moisture and keeps it dry. And if it just went and lived on land it would need a new Latin name. But we digress. The point is, in 1997 and 2005 there were 12 experiments showing that an extra 300 ppm caused Goldenclub to grow an average of 19.8 percent extra, so even if it wishes it weren’t in the water so much at least it can benefit from all the CO2 we’re releasing into the air.