Climate

NAIROBI —  Flooding in Tanzania caused by weeks of heavy rain has killed 155 people and affected more than 200,000 others, the prime minister said Thursday. That is more than double …

For years, scientists have said that atmospheric rivers can either make or break the water supplies of thirsty California cities and farms. For the last two winters, a steady succession …

Jennifer Castellon shook, tapped and blew on a box to shoo out more than 1,000 mosquitoes in a quiet, upscale Inland Empire neighborhood. The insects had a job to do, …

Over the last two decades, 21 coal-fired power plants have shut down across the Western U.S. Twenty-one down, 32 to go. Those numbers are based on a Sierra Club tracker …

TRACY, Calif. —  Behind a chain-link fence in a corner of San Joaquin County sits one of California’s — and perhaps the world’s — best hopes for combating climate change. Here …

California has unveiled an ambitious plan to help combat the worsening climate crisis with one of its invaluable assets: its land. Over the next 20 years, the state will work …

After identifying remnants of bird flu virus in grocery store milk, federal officials announced Wednesday that they “believe” the nation’s milk supply is safe and that the virus is inactivated …

OAKLAND — The first commercial hydrogen fuel station for big-rig trucks in the U.S. is up and running at the Port of Oakland, a baby step toward what hydrogen proponents …

Despite California’s reputation for groundbreaking clean-air rules, Greater Los Angeles is the smoggiest region in the nation — a dubious title it has earned in 24 out of 25 reports …

With runoff from this year’s snow and rain boosting the levels of California’s reservoirs, state water managers on Tuesday announced plans to increase deliveries of supplies from the State Water …