New York gears up for historic climate march

Celebrities, activists and political leaders were mobilizing Sunday to join tens of thousands of people to march through New York in what organizers hope will be the largest climate change protest in history.

Team improves solar-cell efficiency

New light has been shed on solar power generation using devices made with polymers, thanks to a collaboration between scientists in the University of Chicago's chemistry department, the Institute for Molecular Engineering, ...

Calif. teachers fund to boost clean energy bets

The California State Teachers' Retirement System says it plans to increase its investments in clean energy and technology to $3.7 billion, from $1.4 billion, over the next five years.

Dwindling wind may tip predator-prey balance

Bent and tossed by the wind, a field of soybean plants presents a challenge for an Asian lady beetle on the hunt for aphids. But what if the air—and the soybeans—were still?

NASA sees Tropical Storm playing polo with western Mexico

Tropical Storm Polo is riding along the coast of western Mexico like horses in the game of his namesake. NASA's Aqua satellite saw Polo about 300 miles south-southeast of Baja California on its track north.

NASA catches a weaker Edouard, headed toward Azores

NASA's Aqua satellite passed over the Atlantic Ocean and captured a picture of Tropical Storm Edouard as it continues to weaken. The National Hurricane Center expects Edouard to affect the western Azores over the next two ...

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