Science: Plumbing the depths of insanity Once reservoirs and dams were the answer to pollution-free power. Now evidence shows greenhouse gases bubbling up from them at an alarming rate.

From: The Independent - London | Date: October 13, 2000| Author: Fred Pearce | Copyright information

Fetid, choked with weeds and swarming with mosquitoes, the Balbina reservoir in the Amazon rainforest is a billion-dollar boondoggle. The dam soars 50 metres above the trees. But much of the reservoir behind it, which floods an area the size of Warwickshire, is less than four metres deep. "From the air, you can see brown trees beneath the water across huge areas," says Philip Fearnside, from Brazil's National Institute for Research in Amazonia. He has counted 1500 islands and "so many bays an...

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