Summary: Hydrogen may be the fuel of the future, but what would it take to safely and efficiently make the transition from fossil fuels? In this program from the Scientific American Frontiers series, host Alan Alda takes a look at two ways to use the Sun's energy to extract hydrogen; meets with Stan and Iris Ovshinsky, inventors of a hydrogen storage method involving a solid metal alloy; and makes a...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
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Summary: When it comes to global warming, Bjorn Lomborg is a skeptical ecologist, a one-time Greenpeace member who is now at odds with the organization. Why? Though Greenpeace is trusted by 70 to 80 percent of people to be more accurate than government scientists and agencies, and even university researchers, Lomborg charges that it receives all its information from the media. Over a dozen scientists...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: Freon was a refrigeration breakthrough in 1928. It took 45 years for scientists to recognize its dangers, and another 15 for the international community to enact a worldwide ban on all CFC gases. This program illustrates that long process of problem-solving and political action, focusing on the work of Nobel-winning chemists F. Sherwood Rowland and Mario Molina and how their discoveries led to...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006