Send a comment on this item to LII: Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours. Heat Companion website to a 2008 PBS Frontline documentary about global warming that "investigates how the world's largest corporations and governments are responding to Earth's looming environmental disaster." Find the full program, interviews, analysis, lesson plans, readings and links, and "how well do you know" features on topics such as "Sources of World CO2 Emissions." From the WGBH Educational Foundation. http://www.pbs.org/wgbh/pages/frontline/heat/ Asterisk * indicates required field. Your Name Your Email Address * We will not sell or provide your email address to anyone else. Comment * Enter the verification code as it is shown in the box below. This helps prevent automated submissions. *