The forest that remains is receiving less rain, which in turn is making it less green which means the trees that are there are pulling in less carbon dioxide from the air around them.

Phys.org: Parts of the Amazon basin may have once looked more like open savannah

July 8, 2014

Findings have serious implications for understanding past climate change, and how the Amazon basin might react to more modern forest clearance.

Nature.com: Deforestation is carving up the Amazon

May 27, 2014

A rash of road construction is causing widespread change in the world’s largest tropical forest — with potentially global consequences.