Nov 21, 2013 Hydrogen fuel cells worked for Apollo astronauts. Now cars with the technology are bound for showrooms.
Kate Archer Kent
Nov 5, 2013 An advocacy group pushing high-speed rail in the U.S. begins its annual meeting.
Sep 20, 2013 The Environmental Protection Agency's is issuing new limits on emissions by coal-burning plants that new plants will need advanced carbon-capture technology to comply.
Aug 20, 2013 With the financial help of Internet company Alibaba, Liu Chunlei has been crowdsourcing so-called 'Danger Maps' to make pollution information publicly available.
Jul 9, 2013 China's government policy to promote coal use may have cut life expectancy for millions of people by more than five years on average.
Jun 25, 2013 Britain's government wants to spend billions on a high-speed rail system. HS2 -- as it's called -- could cut some journey times in half but critics say it would harm the countryside and trains are yesterday's technology.
May 28, 2013 Residents of California's Central Valley are trying to stop a high-speed rail system that would connect San Francisco to Los Angeles from cutting through their land.
May 22, 2013 Beijing has announced it will add 50 miles of subway track by the end of next year, making the city's subway system bigger than New York's. But will the new additions alleviate the city's notorious traffic and pollution?
Apr 19, 2013 Farmers in Liuchong village in the Central Chinese province of Hubei are standing up to a local phosphate mining operation and fertilizer factory they blame for polluting the village's water and air, killing their crops and livestock, and leading to a sharp increase in cancer rates in the region.