Jan 23, 2015
Cities in India have air that's four times deadlier than Beijing's.
Nov 26, 2014
Agency is forbidden from taking costs into account when writing rules like one proposed this week that would lower amount of smog-causing ozone allowed in the air.
Nov 12, 2014
The U.S. and China are drawing a line in the sand on greenhouse gas emissions.
Jul 16, 2014
Why reducing acid in rain is just the first step in recovery.
Jun 17, 2014
Fabien Cousteau will spend 31 days living in an underwater laboratory
Jun 2, 2014
That's the good news. Less good: The next half is the hard part.
Apr 14, 2014
Lanzhou’s water supply was contaminated with Benzene, a cancer-causing chemical
Jan 20, 2014
Coal may be synonymous with pollution but as coal historian Barbara Freese found, that wasn’t always the case.
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.