Nature World: Human impact on the Amazon rainforest has been grossly underestimated, according to an international team of researchers.
The report detailed in the journal Global Change Biology says that selective logging and surface wildfires can amount to an annual loss of 54 billion tons of carbon from the Brazilian Amazon - that's equivalent to 40 percent of the yearly carbon loss from deforestation.
Researchers estimated both above and below-ground carbon loss from selective logging and ground level...