Before the EPA, the US environment was not federally protected. Vintage photos show Los Angeles before regulations limited ...

These cities far exceed the World Health Organization’s (WHO ... Lahore, Pakistan This city is often covered in thick smog due to vehicle emissions, industrial pollution, and crop burning.

In the drive to build smarter cities around the world, what is the most important thing we should do to tackle air pollution? Chokingly thick blankets of smog are often a byproduct of economic ...

The promise of jobs and prosperity, among other factors, pulls people to cities. Half of the global population already lives in cities, and by 2050 two-thirds of the world's people are expected to ...

She has previously extensively covered stories within the ... with failing grades for all three types of air pollution measured. The cities with the worst year-round particle pollution included ...

BEIJING--Authorities issued their highest warnings for fog and haze on Tuesday as smog enveloped major cities in northern China, warning the public that visibility could drop to less than 50 ...

Nearly 4 in 10 Americans – or more than 131 million people – lived in areas with unhealthy levels of air pollution in recent years, a new report finds. And the country’s air pollution ...