BBC: The amount of carbon lost from tropical forests is being significantly underestimated, a new study reports.
Experts say that in addition to loss of trees, the degradation of trees by selective logging and fires causes large amounts of "hidden" emissions.
The slow moving process has remained almost invisible to satellite observations.
The study team say that 40% of carbon emissions from deforestation in the Amazon is due to degradation.
The research is due to be published in the journal...