See articles here where Philip Fearnside explains how Dams in the rainforest emit tonnes of methane from rotting plant matter
International Energy Agency (IEA) have just announced (see the BBC news story) that world carbon dioxide emissions have risen above 30 billion tonnes for the first time, despite the recession and some good intentions. Of all carbon emissions deforestation is the most variable from year to year, showing that it is the sector that is most susceptible to economic pressures. We can use these to our advantage though as it shows that small changes could quickly leverage rapid significant mitigation. I am more convinced than ever that as a fast acting mitigation solution, saving the rainforest is unparalleled.
Piers Forster, University of Leeds