Discovery Project Earth

Get a three-minute primer on Roger Angel's plan to protect Earth from the sun's harmful rays by constructing a large "shield" made of the thinnest lenses ever created.
Free | Discovery Channel
Length: 02:42
Posted: 5/29/2009

Watch a three-minute primer on Dr. Jason Box's plan to cover glaciers in blankets to stop them from melting.
Free | Discovery Channel
Length: 03:00
Posted: 5/29/2009

The latest military technology could also be a revolutionary breakthrough for space travel.
Free | Discovery Channel
Length: 02:26
Posted: 5/29/2009

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.
Free | Discovery Channel
Length: 03:14
Posted: 5/29/2009