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12.03.2009
Reporter Stacey Delikat digs deep to discover what one Vermont farm is doing to lower its energy bills. [CC]
The aurora borealis, or northern lights, are a common sight in Alaska. Now they have become a way for some high school students to connect to the world.
The ice along the coast of Greenland is melting twice as fast as it was five years ago. It is part of a change in climate that could lead to rising sea levels.