Submission + - Bill Gates Makes Progress On Reinvented Toilets (businessinsider.com)
Julie188 writes: "Last summer the Bill and Melinda Gates Foundation spread $3 million in grants among eight research teams in North America, Asia, Africa and Europe, reports the Scientific American. This challenge is part of Gates' pledge last summer to spend $42 million to reinvent the toilet. The teams delivered a bunch of ways to turn human waste into energy."