Dambuilders and dambusters
Should dams be built? Forging a consensus will be tricky
|GLAND, SWITZERLAND
IT MUST once have seemed like power for free, a gift from the heavens. A dam creates electricity from nothing other than the falling of water through its turbines. The supply is replenished in perpetuity by the munificence of nature. Nothing is used up. Nothing is contaminated. No pollutants are belched into the atmosphere.
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