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Protecting the Oceans: Can damage to marine life be halted? October 17, 2014 • Volume 24, Issue 37
Water Crisis in the West: Do shortages imperil the region's growth? December 9, 2011 • Volume 21, Issue 43.
Extreme Weather: Is global warming causing severe storms? September 9, 2011 • Volume 21, Issue 31
Water Shortages: Is the United States facing a crisis? June 18, 2010 • Volume 20, Issue 23
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