BiographyRobert Costanza is University Professor of Sustainability at the Institute for Sustainable Solutions at Portland State University. Costanza is cofounder and former president of the International Society for Ecological Economics. He has authored or coauthored over 350 scientific papers and reports on his work have appeared in Newsweek, U.S. News and World Report, the Economist, the New York Times, Science, Nature, National Geographic, and National Public Radio.