Who unplugged the drain? Drought leaves bleached 'bathtub ring' along canyons of Colorado River reservoir that has lost 4.4TRILLION gallons of water

• Eleven of the past 14 years have been droughts for Lake Powell reservoir
• Reservoir at Arizona-Utah border is 45 per cent below 'full pool' capacity 
• Lake will drop even further as it gives water to Hoover Dam's Lake Mead
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Read more: http://www.dailymail.co.uk/news/article-3018740/Who-unplugged-drain-Drought-leaves-bleached-bathtub-ring-canyons-Colorado-River-reservoir-lost-4-4TRILLION-gallons-water.html#ixzz3VvB0WYcD