Assisted by calmer winds at their backs, firefighters in northern California on Tuesday tightened their grip on a deadly blaze raging for more than a week around the city of Redding, as 16 people l

Cummins Inc has agreed to recall about 500,000 medium- and heavy-duty trucks in the United States to correct a faulty emissions control system in the engines it made for the trucks, the U.S.

Kenya and Tanzania are among nine African countries set to benefit from an ambitious US-led initiative to invest in gas-powered power plants.

A recently published study finds that more than 1,500 species stand to be affected by the completion of a border wall along the U.S. – Mexico border.

Heavy rains pummeled parts of the U.S. Southwest and mid-Atlantic on Tuesday, swelling floods that have forced evacuations, disrupted air travel and cut power.

A hotter planet could lead to tens of thousands of more suicides by 2050 in the United States and Mexico alone, unless global warming is curbed, according to a study published on Monday.

When Erin Brockovich sued a major utility company in the 1990s for contaminating drinking water with hexavalent chromium, a toxic and carcinogenic metal, national attention turned to California.

Harsh drought conditions in parts of the American West are pushing wild horses to the brink and spurring extreme measures to protect them.