Ian James

It’s a chapter of California history filled with subterfuge and conflict: More than a century ago, agents secretly working for Los Angeles posed as farmers and ranchers as they bought land and water rights across the Owens Valley. Their scheme

The Biden administration and eight California water agencies have reached an agreement to share in the costs of raising a dam to expand San Luis Reservoir, a nearly $1-billion project intended to increase the state’s water-storage capacity and benefit a

Los Angeles will soon begin building a $740-million project to transform wastewater into purified drinking water in the San Fernando Valley, expanding the city’s local water supply in an effort to prepare for worsening droughts compounded by climate change. The

The recent discovery of a new type of invasive mussel in the Sacramento-San Joaquin River Delta is raising concerns that the non-native species could cause major ecological harm and inflict costly complications for the infrastructure California relies on to deliver

Humanity’s heating of the planet, driven by the burning of fossil fuels and unchecked emissions of greenhouse gases, has become the main driver of worsening droughts in California and the American West, according to new research. A team of UCLA

The Biden and Newsom administrations will soon adopt new rules for California’s major water delivery systems that will determine how much water may be pumped from rivers while providing protections for imperiled fish species. But California environmental groups, while supportive

Less than two months after the removal of dams restored a free-flowing Klamath River, salmon have made their way upstream to begin spawning and have been spotted in Oregon for the first time in more than a century. Biologists with