Discovery Project Earth (03:14)
We live at the bottom of an ocean of air. Find out how scientists plan to harness the power of atmospheric currents to stave off the threat of global warming.
Discovery Project Earth (02:55)
Replanting the Earth's depleted forests is a daunting task. Get a three-minute primer on Dr. Mark Hodges' idea exploring the mechanics of mass reforestation.
Discovery Project Earth (03:08)
Will the Space Sunshield team be able to get the lenses into space using a homemade rocket?
Discovery Project Earth (02:26)
The latest military technology could also be a revolutionary breakthrough for space travel.
Discovery Project Earth (03:34)
Could a cloudy day really save the planet? Watch the Project Earth team test whether clouds could curb the rise of global warming.
Discovery Project Earth (03:14)
We live at the bottom of an ocean of air. Find out how scientists plan to harness the power of atmospheric currents to stave off the threat of global warming.
Discovery Project Earth (03:08)
Will the Space Sunshield team be able to get the lenses into space using a homemade rocket?
Discovery Project Earth (02:26)
The latest military technology could also be a revolutionary breakthrough for space travel.ATTENTION! We recently updated our privacy policy. The changes are effective as of September 10, 2008. To see the new policy, click here.
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