Once home to the world’s worst air pollution, Mexico City is enjoying clearer skies thanks to a 20-year cleanup campaign.

In recent weeks, the unusually good air quality has given residents unobstructed views of the snowcapped volcanos that overlook their city.

Dozens of people speak about the economic impact of Premium Standard's uncertain future because of a lack of next generation technology to curb pollution and odor.

Participant partners with Greenpeace to raise awareness about the Craziness of unsecured toxic chemical facilities in the U.S.

EPA had exempted refineries and chemical plants from penalties for exceeding limits during start-up, shutdown and malfunction.

California 9th Circuit Court hears landmark case against oil giant brought by Peruvian indigenous leaders. Oxy Petroluem claims 'inconvenience.'

The legislator said it would 'safeguard jobs, the coal industry and the entire economy as we move toward clean-coal technology.'

NRDC hosts special screening of 'Avatar' with James Cameron, who talks about getting 'schooled' by indigenous leaders on why 'Avatar' has it wrong.

Manure generated by large factory farms doesn't just stink, it may also face government regulation.

Researchers suspect chemical pollution is the culprit behind tiny testicles and a whole host of male health problems.