By Steven Grattan BOGOTA, Colombia (AP) — Droughts have withered crops in Peru, fires have scorched the Amazon and hydroelectric dams in Ecuador have struggled to keep the lights on as rivers dry up. Scientists say the cause may lie high above the rainforest, where invisible “flying rivers” carry rain from the Atlantic Ocean across South America. New analysis warns that relentless deforestation is disrupting that water flow and suggests that continuing tree loss will worsen droughts in the southwestern Amazon and could eventually trigger those regions to shift from rainforest to drier savanna — grassland with far fewer trees. “These are the forces that actually create and sustain the Amazon rainforest,” said Matt Finer, a senior researcher with Amazon Conservation’s Monitoring of the Andean Amazon Project (MAAP), which tracks…
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