Michael D. Mastrandrea is an Assistant Consulting Professor at the Stanford University Woods Institute for the Environment. His work has been published in Science Magazine and Proceedings of the National Academy of Sciences, and he is co-author of chapters on key vulnerabilities and climate risks and on long-term mitigation strategies for the 2007 IPCC Fourth Assessment Report. He also serves on the Editorial Board for the journal Climatic Change and is co-editor of the book Climate Change Science and Policy. Stephen H. Schneider was Melvin and Joan Lane Professor for Interdisciplinary Environmental Studies and Professor of Biology at Stanford University. He was also Coordinating Lead Author of the IPCC's working group on Impacts, Adaptation, and Vulnerability, from 1997 to 2001, and, with his IPCC colleagues, was awarded a joint Nobel Prize in 2007. He was the author or editor of many books, including Science as a Contact Sport- Inside the Battle to Save Earth's Climate and Scientists Debate Gaia- The Next Century (MIT Press, 2004).