"Several environmental and health groups are moving to protect a new rule limiting ozone levels against a lawsuit."

"The Environmental Protection Agency proposed tougher new limits on Tuesday on smokestack emissions from nearly two dozen states that burden downwind areas with air pollution from power plants they can't control."

"Indonesia's forest fires, which this year sent vast plumes of smoke across the region described by climate officials as a 'crime against humanity', could return as early as February, the forestry minister said on Friday, but on not such a large scale."

"Mexican copper miner, smelter, and refiner ASARCO must pay more than $163 million to settle U.S. government charges that the company broken the law by releasing hazardous air pollutants, including lead and arsenic, from its primary copper smelter in Hayden, Arizona."

"Smoking would be prohibited in public housing homes nationwide under a proposed federal rule to be announced on Thursday, a move that would affect nearly one million households and open the latest front in the long-running campaign to curb unwanted exposure to secondhand tobacco smoke."

"The Environmental Protection Agency said on Monday that it had discovered emissions-cheating software on more Volkswagen and Audi cars than previously disclosed and, for the first time, also found the illegal software in one of the carmaker’s high-end Porsche models."

"UN weather and climate agency says hole over Antarctica is larger due to colder stratosphere but will shrink again".

"Indonesia is preparing warships as a last resort to evacuate children and others suffering from smoke inhalation from slash-and-burn fires, a minister said on Friday, as the country struggles to contain fires expected to continue for weeks."

"The legal onslaught against the Obama administration's Clean Power Plan kicked off [Friday] as 25 states, industry and labor groups challenged the rule in court."