"The European Parliament has decided to set up a 45-member inquiry committee to investigate breaches of EU rules on car emission tests and alleged failures by EU member states and the European Commission to enforce EU standards."

"Worsening air conditions in China have lead to heightened public frustrations with pollution, causing the government to confront companies believed to be lying about their emissions data."

"A U.S. appeals court said on Tuesday Obama administration regulations limiting emissions of mercury and other toxic pollutants can remain in effect while the government revises the rules in response to a recent Supreme Court ruling."

"Emission controls required on out-of-state power plants have yielded big reductions in mercury pollution in Western Maryland's air, a study has found. So far, however, the state's fish remain as contaminated with the toxic chemical as ever, researchers say."

"MUSTAFABAD, India — Khushboo Kushwaha has a few years before she will have to squat in front of a filthy, smoking open stove three times a day to cook meals for her family, as her older sister and cousins do now.

Khushboo is 11, and the girls in her home usually take up cooking duties as teenagers. But the smoke that billows from the wood and dried dung they burn, stinging the older girls’ eyes and throats, already affects her.

"U.S. EPA's landmark air standards for mercury appear likely to survive an effort by industry and states to kill the rules in court."

"As the Paris climate change summit kicks off, China, the world’s leading carbon-emitting country, is choked in pollution. The Ministry of Environmental Protection said Sunday that heavy smog had covered China’s north, including Beijing, for three days in a row."

"In recent remarks Robert E. Murray, the chief executive officer of Murray Energy, the largest privately held coal mining company in America, enthusiastically praised Rep. Lamar Smith, R-Texas, the chairman of the House Committee on Science, Space and Technology, for leading an investigation into prominent climate scientists and environmental officials."

"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."