Add Yahoo as a preferred source to see more of our stories on Google. For more than five decades, the Clean Air Act has prevented millions of premature deaths, hospitalizations, and lost work and ...

The U.S. Environmental Protection Agency issued a clarification letter Monday to manufacturers saying that the Clean Air Act does not prohibit independent repairs to offroad diesel equipment such as ...

The sky turns a rusty orange. The sun dims behind a thick veil of smoke. For millions of Americans, even ones far from wildfire-prone lands, this eerie scene is no longer rare. Extreme wildfires have ...

The EPA's new rule seeks to undo a 2009 finding that allowed the federal government to regulate six greenhouse gases.

The Clean Air Act’s outdated framework is hindering progress. New bills aim to modernize it with reforms aligned to today’s economic, environmental, and scientific realities. The Clean Air Act (CAA) ...

Thanks to the Clean Air Act and its strong regulatory framework, we’ve made remarkable progress in improving air quality for all Georgians.” — Michael Odom, Georgia Environmental Protection Division ...

Environmentalists say making exemptions easier to obtain could be a ploy to avoid tackling homegrown sources of air pollution. States and local governments would have more leeway to claim Clean Air ...

President Trump has repeatedly labelled climate change a “hoax” and a “scam.” His administration has recently taken two significant actions in its war on climate science, both undermining the nation’s ...

Fox News correspondent Jeff Paul opened his report with a picture that felt upside-down: a 65-year-old diesel mechanic, Troy Lake, sent to federal prison for keeping essential vehicles on the road.