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All landfill trash decomposes over time and releases methane, a greenhouse gas, into the air. At landfills across the county, new technology is being developed to capture that gas, treat it and send it where it can be used as fuel. At Three Rivers Landfill in South Carolina, landfill gas travels 17 miles through a pipeline to Kimberly Clark"s Beech Island facility, where it helps to power the manufacturing plant.

Diane VanDe Hei, Executive Director, Association of Metropolitan Water Agencies, is interviewed about the impacts of climate change on water supply and efforts to include measures that address water supply in the Climate Security Act.

Senator Lieberman describes the process of bringing the Climate Security Act to the Senate floor, and the need for the measure on environmental, economic and national security grounds. The legislation would establish a national cap-and-trade system to regulate carbon emissions.

Senator Cardin speaks on the economic and energy independence benefits of the Lieberman-Warner Climate Security Act bill.

Nancy Young, Vice President, Environmental Affairs, Air Transport Association, is interviewed about airline industry adoption of alternative fuels, from both fuel economy and environmental perspectives, as the industry looks to further reduce its greenhouse gas emissions.

Jennifer Turner, Director, China Environment Forum at the Woodrow Wilson International Center for Scholars, is interviewed on energy demand and environmental conditions in China leading up to the 2008 Olympic Games in Beijing. Turner discusses China's long-term energy and environmental concerns, as well.

David Doniger of NRDC, Ralph Izzo, Chairman, President and Chief Executive Officer, PSEG; Jim Rogers, Chairman, President and Chief Executive Officer, Duke Energy, take part.

Secretary Kempthorne announces that he is accepting the recommendation of U.S. Fish and Wildlife Service (FWS) Director Dale Hall to list the polar bear as a threatened species under the Endangered Species Act (ESA). The listing is based on the best available science, which shows that loss of sea ice threatens and will likely continue to threaten polar bear habitat.

The IMF's most recent World Economic Outlook study includes a climate change analysis. The report is one of the first to capture broad, deep data concerning the potential costs of climate change to the world economy and the economic result of a worldwide implementation of greenhouse gases mitigation strategies, such as cap-and-trade and carbon emissions tax. Tamirisa, co-author of that analysis, outlines the IMF's conclusions.

Lester Brown, Author of Plan B 3.0: Mobilizing to Save Civilization, discusses the need for the United States to control its greenhouse gas emissions in order to ensure the security of the worldwide food supply. Brown outlines how market forces and societal pressure can encourage those reductions.

Senator John Barrasso (R-WY) renews his effort to take a new look at combating global climate change. In his speech to the Senate, Barrassostresses the importance of developing technology to remove existing excess green houses gases from the atmosphere andpermanently sequester them. The "Greenhouse Gas Emission Atmospheric Removal Act," or GEAR Act, will establish an award system for scientists andresearchers.

If you can believe it, Shell Oil company provides two plausible future scenarios in which oil supply drops in either case. No surprise there. The biggest surprise is the fact that such a company would release these scenarios to the public to help usher in more renewable energy. Perhaps that is no surprise either. Take a look!

Maybe it was the martinis I had already drunk, or the beers he had already drunk, or maybe it’s just plain impossible to have a discussion about Biofuels without getting heated. But boy, did I have a doozy on Friday.

Somehow the discussion then veered away from Biofuels specifically and towards agriculture and GHG emissions in general. At which point, he presented his most sensational argument yet...

You might've guessed, but the problem is bigger than just putting oil in our cars. Moving towards electric propulsion is a big part of the solution though.

Three advisers to the 2008 presidential candidates describe their respective candidate's energy, environmental and climate change policies should their candidate be elected president.