Aa Aa Aa Tropical forests are highly diverse ecosystems located ... than 12% of annual global carbon dioxide emissions (van der Werf et al. 2009). Although large areas of tropical forest have ...

Tropical rainforests lie along the equator, mainly between the Tropics of Cancer and Capricorn. Rainforests have four main layers: the emergent, the canopy, the under canopy and the forest floor.