Scientific American: Deforestation adds up. New research finds that the Amazon region could lose more than half of its tree species by the year 2050 due to a combination of logging, agriculture, dams, fires, mining, climate change and human development.
All told, at least 36 percent and as many as 57 percent of the Amazons more than 15,000 tree species should now be considered threatened with extinction, according to a paper published today in Science Advances.
The paper, the work of 158 researchers from 21 nations,...