The American Geophysical Union today released a new statement updating its position on climate change, the evidence for it, potential consequences from it, and how to respond to it. Michael Prather (pictured), Fred Kavli Professor of Earth System Science at UC Irvine, chaired the committee that drafted the new statement. The statement is the first revision since 2003 of the climate-change position of the AGU, the world’s largest scientific society of Earth and space scientists. AGU has a membership of 50,000 researchers, teachers and students in 137 countries.