Stephen Schneider was Professor of Environmental Biology and Global Change at Stanford University, a Co-Director at the Center for Environment Science and Policy of the Freeman Spogli Institute for International Studies and a Senior Fellow in the Stanford Woods Institute for the Environment. Schneider served as a consultant to federal agencies and White House staff under several American presidential administrations. In other words, an expert on climate change. Watch as he answers the questions of a room full of climate change deniers on the SBS Insight show. Keep in mind this was aired in 2010.