Contact: Mark C. Urban
University of Connecticut
Caption: University of Connecticut Assistant Professor Mark Urban stands under a sheet of aufeis in Alaska. These ice sheets form over Arctic underground springs but have become less prevalent with global warming. Urban, a professor of ecology and evolutionary biology, fears that current climate change models may grossly underestimate future extinctions because they fail to account for species competition and movement.
Credit: Mark Urban
Usage Restrictions: Image and caption information cannot be used until 7 p.m. (EST) Jan. 3, 2012 due to embargo.
Related news release: Climate change models may underestimate extinctions