As global temperatures rise, cities face the challenge of keeping their infrastructure and residents cool. Chicago is tackling the problem with a green design makeover that includes 369 green roofs covering 5.5 million square feet -- more than any other…

Oct 04

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"The Eyes of History 2012," a new exhibit at Washington D.C.'s The Newseum, highlights more than 70 award-winning photos by The White House News Photographers Association. The following are the 2011 top political photos featured at the exhibit.

Oct 02

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The Australian Institute of Marine Science reported that over half of the Great Barrier Reef has been lost due to storms, ocean acidification and a destructive species of starfish called crown of thorns. Here you can see the difference these…

The giant panda is an endangered species, threatened by destruction of their natural habitats and low birth rates. At zoos, like Smithsonian's National Zoo, veterinarians and zoologists attempt to understand the reproductive cycle of these large mammals to prevent their…