Grist: In 1965, the federal government dammed up a river to create Lake Meredith in Texas. Its a reservoir that provides drinking water to 11 cities, and locals use it to swim and boat and be outdoors, as well, Next City reports. But its been shrinking, as you can see in the video below. The time-lapse begins in 1984, with a full, deep lake, and it ends in 2012 with a stub of water. Whys the water disappearing? Many reasons, Next City says: One study found that there was no single factor causing the...