Associated Press: Scientists warned Thursday that climate change in coming decades will cause more floods in the Northern Hemisphere and droughts in the south and in arid areas, which may lead to a global food crisis. Areas that will suffer water shortages include the Mediterranean Sea basin, the western U.S., parts of southern Africa and northeastern Brazil. Intergovernmental Panel on Climate Change chairman Rajendra Pachauri said at the end of a meeting in Budapest that the rising frequency …