Drought and climate change: an uncertain future?
Increase in global severity of hydrological drought - essentially the proportion of land under drought conditions - likely by the end of the 21st century, with systematically greater increases if no climate change mitigation policy is implementedDrought frequency may increase by more than 20% in some regions of the globe by the end of the 21st century, but it is difficult to be more precise as we don’t know yet how changes in climate will impact on the world’s rivers. The results come from a study, published this week in Proceedings of the National Academy of Sciences (PNAS), which