Mongabay: Though scientists are striving hard to discover how the world's forests will respond to climate change whether they will tip from being carbon sinks to being carbon sources much remains clouded in mystery. Photo credit: Rhett Butler.
The world's tropical and subtropical forests absorb 1.1 trillion kg. (120 billion tons) of carbon from the atmosphere every year, storing it in soil and living and dead biomass, according to USDA Forest Service researcher John Parrotta. Amazonian forests alone...