(Carnegie Institution) For years, scientists have debated how big a role elephants play in toppling trees in South African savannas. Tree loss is a natural process, but it is increasing in some regions, with cascading effects on the habitat for many other species. Using high resolution 3-D mapping, Carnegie scientists have for the first time quantitatively determined tree...

Authored by: Michel Bézy Today in Pittsburgh, Jared Cohon, President of Carnegie Mellon University (CMU) and Paul Kagame, President of Rwanda will announce...