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* Running Time: 4:11 * Aired: March 2007 * Description: This is a short clip from a BBC program called Top Gear about using Bio diesel made from cooking oil to run a car. * Rating: Very Good * 7-Revolutions: Technology, resources

Thanks to technological advances, in the past few years, vast amounts of natural gas -- particularly shale gas -- have become economically viable. This development is an unmitigated boon for consumers interested in affordable energy and for governments hoping to reduce their countries' dependency on foreign oil.

VIETNAM and China share a long history of enmity-and of managing to patch things up when they go wrong. But their latest dispute is not running true to form. Vietnam was taken aback in early May when China parked an oil rig on its doorstep.

* Aired: January 2009 * Running time: 5:27 * Description: Provides information about energy prices and ethanol. * Rating: Good. Used during a lecture on biofuels. * 7-Revolutions Section: Resources, Technology

Rising prices, powerful storms, severe droughts and floods, and other unexpected events are likely to play havoc with the fabric of global society.