The World Health Organization is urging nations to adopt new air quality guidelines that could save 7 million lives a year worldwide. Fine particulates known as PM2.5 are the deadliest of six types of pollution that need tighter restrictions, WHO says.
Once a major polluter becomes subject to the most-stringent regulations, it is always subject to the most stringent regulations, in perpetuity. Now, however, the EPA is rolling back the "once in always in" policy, and environmental activists are alarmed.
When the Clean Air Act was passed, California was already developing innovative laws and standards to address its unique air pollution problems. So Congress carved out an exemption.
There's still visibility issues at the Grand Canyon, but things seem to be getting better. Here's how.
President Obama's Clean Power Plan has been put on hold by the Supreme Court, but this academic thinks Section 115 of the 46-year-old Clean Air Act allows Obama's plan to function.
For years, the coal industry has enjoyed tax benefits and exemptions from strict environmental regulations. But those days might be over: President Barack Obama is using EPA authority under the Clean Air Act to try to curb coal power plant emissions, including CO2 and mercury. But coal interests are fighting back in the courts.
The Obama administration's big new move on climate policy would cut climate pollution from power plants by 30 percent over the next 16 years, with the biggest reduction coming from coal-fired plants. But opponents promise a fight on many fronts.
Residents of Beijing an other parts of northern China are still dealing with terrible pollution, but it's not nearly as bad as it was on Saturday, when pollution levels exceeded the scales used to measure such problems. But while the pollution is horrible, China's not the first place to deal with deadly pollution.
A federal appeals court in Washington, D.C., heard two days of oral arguments in a case pitting coal, oil and steel industry groups against the U.S. Environmental Protection Agency. The coalition that took the EPA to court claims Clean Air Act regulations are unfounded and burdensome for businesses.
The Supreme Court unanimously agreed yesterday to reject a lawsuit brought on by six states, New York City, and several land trusts, seeking to reduce carbon dioxide emissions from major power plants. Jeff Rosen of George Washington University joins us.
Jay Rockefeller (D-WV) wants to put EPA's climate authority on hold for two years. His bill could get more votes than similar Republican legislation. Would President Obama veto?