 This figure comes from a U.S. government from the Environmental Protection Agency, EPA, and it's based on just a fascinating study that was published in 2011 that takes into account the changes in temperature evaporation. It takes into account changes in rainfall that are expected if we keep emitting a lot of CO2 when we look out late in the century. What you see is low risk of drought as expected, so something like over here in places up near the pole, for example, where not a huge number of people live at this time. But what you'll notice is the high risk of drought in very big areas where actually a whole lot of people live now. And so this is one of those plots that is maybe a little bit worrisome if you look out to the future and we don't decide to change our behavior because there is projections that we make drought more likely in a whole lot of places where a whole lot of people now live.