Cities in California make up a significant proportion of the country's most polluted metropolitan areas when it comes to air ...

Thousands of events are scheduled across the globe to celebrate Earth Day on Tuesday, April 22. Here's a handful happening in ...

Before the Trump administration’s cuts, members of the civilian federal work force were in every state and in thousands of ...

Alameda County, Mendocino County, San Bernadino County, and San Mateo County are all featured in the top 10, at fifth, seventh, ninth, and 10th respectively. The largest cities in each respectively ...