The transformation of Pacheco Marsh from a scarred dumping ground into a pristine wetland represents a significant achievement in environmental restoration, showcasing the potential for nature to reclaim industrial sites.
At his home in Pasadena, high schooler Atticus Jackson frantically shoved his belongings into his car as the sky turned a deep orange. A few hundred feet away, the fire climbed up the mountain and a cloud of red and gray smoke obscured the view.
"Extending the spring crab season with pop-up gear helps support an economically vital fishery while preventing whale entanglements. It's a true 'win-win' for fisheries and wildlife."
Researchers have known since at least 2008 that wildfires can create chromium-6, but a new study, published in the journal Environmental Science and Technology in November, is the first to report details such as how long it might persist in groundwater.
When California became a state in 1850, officials signed 18 treaties setting aside millions of acres for tribal reservations. Congress killed the deals in secret after pressure from state leaders. Many tribes had already moved, trusting the promises. Now California wants to make good.
The Colorado River is an interconnected system, sustained by Rocky Mountain snowpack, rainfall and groundwater. It is fragile, and under increasing stress. Two and a half decades into this century, the river that built the modern West has 20% less water flowing through it than it did on average in the last century. As heat and drought intensify, so do the stakes: Failure to recognize the severity of changing conditions, managing the river in parts without considering needs of the whole and inadequate planning for long-term shortages put the future of all the basin at risk.
The largest share, $235 million, will be used to rehabilitate the Delta-Mendota Canal, which carries water to farmlands. An additional $200 million will help continue repairs on the Friant-Kern Canal, another key conduit for water in the valley. Sinking ground, an effect of heavy groundwater pumping, has damaged segments of the Friant-Kern Canal and reduced its capacity.
The proposed 1.5 million acre-foot Sites Reservoir would store water from the Sacramento River and distribute it during droughts to several parts of California, including the Sacramento and San Joaquin valleys, Southern California and the Bay Area. Stretching about 4 miles across and 13 miles north to south, it's meant to provide water to approximately 24 million people, and it would mark California's first major reservoir project since 1979, when New Melones Lake was completed.
Western water law is based on the prior appropriation doctrine, which gives the first entity to make "beneficial use" of water the right to keep on using that amount, even if that means that upstream "junior" users' spigots will get shut off. By the early 1900s, a rapidly growing California was enthusiastically diverting the Colorado River, with huge irrigation districts gobbling up the senior water rights.
The question of how to protect fish and the ecological health of rivers that feed California's largest estuary is generating heated debate in a series of hearings in Sacramento, as state officials try to gain support for a plan that has been years in the making. "I am passionate that this is the pathway to recover fish," said state Natural Resources Secretary Wade Crowfoot. "This is the paradigm we need: collaborative, adaptive management versus conflict and litigation."
At the center of the dispute are eight dams and reservoirs on the Columbia and Snake Rivers in the Pacific north-west that have created devastating obstacles for salmon and steelhead unable to breach their deadly turbines or navigate through the large, warm, artificial pools.
Developers seeking to build dams, mines, data centers or pipelines must navigate a permitting process to do so. One requirement in the process is obtaining certification from a tribe or state confirming that the project meets federal water quality standards. Currently, tribes and states conduct holistic reviews of projects, known as " activity as a whole ", evaluating all potential impacts on water quality, including spill risks, threats to cultural resources, and impacts on wildlife. This approach was established under the Biden administration in 2023.
Wildlife populations are in decline. Recreation sites are crowded and often underfunded. Wildfires are larger, more destructive and harder to control. Climate change is reshaping natural systems, from ocean fisheries to mountain snowpacks, faster than institutions can respond. At the same time, communities are being asked to host new energy projects, transmission lines and mineral development - often without clear processes, adequate resources or trust that decisions are being made in the public interest.