Most Olympic visitors will leave Beijing unaware that water is this city's most critical environmental challenge. The government has embarked on a controversial and costly...
Matt Damon was one of hundreds of participants in this year's meeting of the Clinton Global Initiative, former President Bill Clinton's effort to funnel wealth...
The Aquaduct is pedal powered vehicle that transports, filters, and stores water for the developing world. A peristaltic pump attached to the pedal crank draws...
