Want to save fuel? Fly a kite, German inventor says

The blue-hulled vessel would slip by unnoticed on most seas if not for the white kite, high above her prow, towing her to what its creators hope will be a bright, wind-efficient future.

Arctic shipping routes open

Satellite measurements show we are heading for another year of below-average ice cover in the Arctic. As sea ice melts during the summer months, two major shipping routes have opened in the Arctic Ocean.

Icy Arctic rising as economic, security hot spot

The icy Arctic is emerging as a global economic hot spot—and one that is becoming a security concern for the U.S. as world powers jockey to tap its vast energy resources and stake out unclaimed territories.

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