SEATTLE (Reuters) - Bill Gates is betting the toilet of the future for the developing world will be solar powered. The world's leading private philanthropist handed a $100,000 prize to the California ...

A solar-powered toilet that turns urine and feces into hydrogen and electricity has won a $100,000 first prize in the Reinvent the Toilet Challenge sponsored by the Bill & Melinda Gates Foundation.

This week, Bill Gates was at a summer fair in Washington State, but he was not eating deep-fried butter on-a-stick, or checking out livestock. Gates was inspecting cutting-edge toilet technology on ...