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Andrew Song and Luke Iseman of Make Sunsets ready for a launch. Iseman says they hope to someday cool the earth on a larger scale.

Startups want to cool Earth by reflecting sunlight. There are few rules and big risks

In a parking lot and on San Francisco Bay, NPR witnesses two different tests for solar geoengineering to tackle climate change. With much science unsettled, experts say regulations aren't keeping up.

Most reservoirs aren't allowed to fill up in the winter, but Folsom Reservoir outside of Sacramento, California is using a new strategy to save more water by using weather forecasts.

Heavy rain is still hitting California. A few reservoirs figured out how to capture more for drought

Decades-old rules mean most reservoirs aren't allowed to fill up in the winter. A new approach using weather forecasts is helping some save more water to help with California's drought.

Clusters of African daisies bloom next to an overpass along Interstate 8 near Alpine, California on March 20, 2024. The bright orange and yellow flowers, easily mistaken for native California poppies, are the remnants of a decades-old federal wildflower program.

Scattered along San Diego’s highways, remnants of a decades-old program are abloom

Another wet winter is breathing new life into wildflowers planted years ago under a federal mandate.

Primary Election 2024: State Assembly races

Meet the candidates and learn what's at stake with KPBS' primary election guide for local State Assembly Districts.

The country's two biggest reservoirs are on the Colorado River. Water levels at Lake Powell have dropped steeply during the two-decade megadrought.

The Colorado River rarely reaches the sea. Here's why

More than half of the Colorado River's water is used to grow crops, primarily livestock feed, a new study finds. The river and its users are facing tough decisions as the climate warms.

In this Aug. 22, 2021, file photo, a family walks over cracked mud near Lake Oroville's shore as water levels remain low due to continuing drought conditions in Oroville, Calif.

Drought-hit California cities to get little water from state

Thursday's announcement by water officials comes as the most-populous U.S. state anticipates a fourth dry year.

Motorists on Highway 101 watch flames from the Thomas fire leap above the roadway north of Ventura, Calif., on Wednesday.

California utility will pay $80M to settle claims its equipment sparked devastating 2017 wildfire

Southern California Edison will pay $80 million to settle claims on behalf of the U.S. Forest Service connected to a massive wildfire that destroyed more than a thousand homes and other structures in 2017.

County of San Diego's Department of Environmental Health beach closure sign posted on Imperial Beach in Imperial Beach, Calif. on Aug. 4, 2022.

Roundtable: A busy week for water quality, drought and immigration at the border

President Biden announces a formal end to the Remain in Mexico asylum policy, Ensenada struggles to supply water amid drought conditions, and summer closures continue at South County beaches amid a new round of cross-border sewage contamination.

A dry lakebed at the Salton Sea in this March 16, 2021, photo.

Drying California lake to get $250M in US drought funding

The federal government says it will spend $250 million over four years on environmental cleanup and restoration work around a drying Southern California lake.

Receding water in Utah's Great Salt Lake is seen on March 5. Environmentalists are suing the state to force water cutbacks to farmers to save the Great Salt Lake.

Farmers accused of drying up the imperiled Great Salt Lake say they can help save it

Environmentalists are suing Utah to force water cutbacks to farmers to save the Great Salt Lake. Farmers call the blame unfair and say that would have its own environmental and economic consequences.

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