From the CO2Science archive: Sporobolus pyramidalis Beauv. Or Whorled Dropseed is, like so many of God’s little creations, either an invasive pest or a pretty flower depending on where and when you find it. It is also a very cool moniker that, pace Dave Barry, would be a good name for a rock band. But love it, hate it or play it, the stuff prefers hot places so it ranges from the U.S. south into South America and maybe beyond, but looks a lot like other types of Dropseed so rumours of its appearance in China, Africa and elsewhere are not confirmed. Wherever it goes or has gone, it will benefit from the CO2 it finds there. In 2001 there were six experiments that found an additional 300 ppm CO2 boosted its growth by an average of 33.5%. So Whorl on little Dropseed, wherever the wind carries you. And a one and a two…