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Seawater covers 71 percent of the planet. Fresh water is a much more precious commodity. So, a Brazilian environmental group has come up with a novel proposal for conserving clean water. SOS Mata Atlantica is urging people to urinate in the shower. Doing so could save households more than a thousand gallons of water a year in toilet flushes. Leave your comment…(photo: flickr.com/photos/gehat)