03/22/2012 05:16 pm ET

9 Of The World's Most Majestic Rivers In Peril: A River Runs Through It

Around 70 percent of the world’s fresh water is locked in the ice of Antarctica. Around 53,000 cubic miles of water passes through the planet's lakes and rivers, which are under constant assault from human encroachment. By the year 2025, 52 countries -- two-thirds of the world's population -- will likely experience water shortages, according to U.S. government data.

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