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In this Saturday, February 15, 2014 photo, two men walk toward salt-covered rocks that were once deep underwater at Lake Oroumieh, in northwestern Iran. Oroumieh, one of the biggest saltwater lakes on Earth, has shrunk more than 80 percent to 1,000 square kilometers (nearly 400 square miles) in the past decade, mainly because of climate change, expanded irrigation for surrounding farms and the damming of rivers that feed the body of water, experts say. (Photo by Ebrahim Noroozi/AP Photo)
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