Greenhouse-gas emissions from tropical dams

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Emissions from tropical hydropower are often underestimated and can exceed those of fossil fuel for decades.

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Figure 1: Dead trees in Brazil's Samuel Reservoir.

© PHILIP FEARNSIDE

Figure 2: Methane-rich water is drawn from below the thermocline that divides the water column into a surface layer (epilimnion) and an anoxic bottom layer (hypolimnion).

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Correspondence to Philip M. Fearnside.

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