Alley was awarded the Seligman Crystal in 2005 " for his prodigious contribution to our understanding of the stability of the ice sheets and glaciers of Antarctica and Greenland , and of erosion and sedimentation by this moving ice . " Alley is one of several Penn State earth scientists who are contributors to the United Nations Intergovernmental Panel on Climate Change , which shared the 2007 Nobel Peace Prize with Al Gore
2007 Nobel Peace Prize
2007 Nobel Peace Prize
Richard Alley