Former President Bill Clinton will take to the stage with the Rolling Stones this Thursday at an L.A. concert aimed at raising awareness about the looming problem of climate change. Clinton won’t be playing the sax, but he will be blowing his metaphorical horn in a speech about the need to tackle global warming, says the Natural Resources Defense Council, organizer of the gig. The show will mark the end of the North American stretch of the Rolling Stones’ Licks World Tour.