Mark Levene, founder of Rescue!History, discusses why historians and other humanities scholars should get involved and contribute to the debate and understanding of global warming. Bill Turkell, environmental and digital historian at the the University of Western Ontario, explains how historians can make better use of the web, looks at the developement of an online environmental history research infrastructure in Canada and how the use of programming languages can improve historical instruction. Websites mentioned in this episode include: rescue-history-from-climate-change.org, www.crisis-forum.org.uk, digitalhistoryhacks.blogspot.com.