New scientific research offers a particularly comprehensive look at the state of glaciers across the Lower 48, including those in the Sierra Nevada and on Mount Shasta.

The Sierra Club is suing the city of San Francisco’s water department, claiming officials are manipulating water data to justify bigger water grabs for the city — and inflating customer rates.

Wild Cherry Canyon in Avila Beach will be the first of three sprawling properties to win permanent protection around the Central Coast’s Diablo Canyon nuclear power plant.

A gray wolf was spotted last week in rural Lake County, marking new territory for the endangered carnivore in California’s Coast Range.

The first California tribal member to serve in the state Legislature is pushing a bill that would give Indigenous people more say over their ancestral lands. But a surge of opposition has emerged.

The new study is one of the first to dissect the impacts of climate change on dwindling water supplies in the West.

This new 58-acre park in the Bay Area features a mile-long scenic stretch of sandy shoreline that was once owned by a California rock star.

A new offshore fracking project is seeking federal approval, which critics say could open the door to more along California’s coast. The California Coastal Commission may intervene to stop it.

The plan to build California’s largest new reservoir in 50 years has hit a major snag, threatening to undermine the $6 billion water-supply project and prompting outcry from supporters.

The plan to build California’s largest new reservoir in 50 years has hit a major snag, threatening to undermine the $6 billion water-supply project and prompting outcry from supporters.

The controversial roundup netted more than 450 wild horses, which had trampled grasses and used tufa towers as scratching posts, officials say. The captives are up for adoption.

A couple in Mammoth Lakes and their two dogs fended off an unusually aggressive bear in their eastern Sierra community.

Numerous Sierra passes closed Tuesday as the late-season snowstorm blew in, with multiple inches of snow expected.

Yosemite National Park officials say a 10-year effort to reintroduce the California red-legged frog has succeeded. “They have proven that they can exist on the landscape,” an aquatic ecologist...

A top Trump official said that a California buyer may have emerged for two dams on the Eel River. PG&E, the dams’ owner, wants to take them down, but the Trump administration wants them to...

A warm winter and little snowfall have resulted in one of California's lowest-ever snowpacks, raising concerns about water supplies and wildfires.

As more storms hit Hawaii, questions loom over how residents and tourists will confront increasing floods, fires and other climate disruption.

An unusual battle over new housing is emerging on the western edge of Yosemite National Park, in an area zoned for forest.

National Parks officials say requiring reservations for entry to Yosemite was problematic. But conservation groups say dropping the policy will lead to congestion and environmental strain.

One of the South Bay’s largest remaining private rural properties will be protected from new development — and plans for a quarry will be scrapped.

The Federal Emergency Management Agency is reducing the reimbursement city and rural fire departments get for responding to wildfires. Fire officials fear it will hamper fire response across the...

The pipeline, planned for many years, would allow water shipments to bypass sensitive delta wetlands and reach drier areas in Central and Southern California.

California’s proposed monument, encompassing a river in one of the hottest and driest corners of the country, would be larger than Yosemite.

The new superintendent will face challenges such as crowding, the prospect of wildfires and the poor condition of some of the park’s restaurants and hotels.

California Gov. Gavin Newsom, fresh off a redistricting win, is planning to travel to COP30 in Brazil next week to showcase America’s resolve for addressing the climate crisis.

After the largest dam-removal effort in U.S. history, salmon appear to be thriving in the Klamath River, though some are taking a detour.

Klamath River salmon have crossed a major threshold after dams were removed along the California-Oregon border, with the fish reaching the river’s headwaters for the first time in more than a...

A housing shortage crisis combined with an era of climate-fueled wildfires has made building homes a fraught undertaking across much of California.

U.S. Agriculture Secretary Brooke Rollins suggested that the Trump administration may try to halt PG&E’s plans to remove two dams on a Northern California river, due to water supply concerns.

The new national monument near Santa Cruz, established during President Obama’s term, will offer hiking, biking and sightseeing opportunities when it opens to the public this summer.

The return of salmon to their ancestral home was a fundamental goal of the dam removal and a measure of the Klamath River project’s success. However, a problem has emerged.

Yosemite National Park’s major contractor, Aramark, received unusually poor performance grades in a newly available report from the park service.

Visitors to Yosemite National park will be able to cross through the park on Highway 120 with Monday’s scheduled opening of Tioga Pass.

Forest Service aerial surveys show that tree mortality in California hit its lowest level in years — good news for Sierra forests decimated by drought, beetles

California wildlife officials released a new map showing the location of endangered gray wolves around the state. The animals are tracked by GPS collars.

After months of uncertainty, Yosemite National Park unveils scaled-back reservation requirements for visitors, starting Memorial Day.

Decades ago, the Kern River flowed through Bakersfield. Now it is dry — but some residents are dreaming of its return.

A new study suggests that Jeffrey pines are charging uphill in the Sierra Nevada, in an unusual reverberation of climate change.