The Amazon effect: how deforestation is starving São Paulo of water

A drought two years ago triggered fighting, looting and official ‘states of calamity’ across the metropolis, with the army preparing to send in troops. Now, new warnings suggest it could happen again – and point to a surprising culpritSão Paulo could face more devastating water shortages if farmers continue to clear the Amazon forest, warns the utility chief who recently steered the biggest city in the Americas from the edge of drought catastrophe.Jerson Kelman, presiden