Santa Clara County Environment Digest

Forecasters have struggled to understand why tropical storms sometimes blow up into major hurricanes. Scientists have shed some light on this forecasting challenge.

Wet weather and planned cuts by California, Arizona and Nevada averted declines that could have threatened water deliveries and power production—but long-term threats to the Colorado River remain.

When Palo Alto adopted a law to shield more trees from destruction, city leaders lauded it as an overdue way to protect a treasured community asset. Now, the city is preparing to prune the law back.

California cities can ban synthetic turf under a law Gov. Gavin Newsom signed. He rejected a bill to ban PFAS in fake lawns.

Massive ocean wind farms off Morro Bay and Santa Barbara County—which could transform these quiet coastal towns and affect marine life—face a turbulent path.

Gov. Newsom vetoed bills to outlaw caste discrimination and to consider gender affirmation in child custody cases. Advocates wonder if he’s thinking about his national political profile.

Hundreds of wells in Tulare Lake aquifer are at risk of going dry. Today's recommendation is the first time that state officials have moved to crack down on local plans that fail to stop excessive groundwater pumping.

The facts of climate change can lead to feelings of hopelessness and despair. Some California activists are creating communities for people to talk about those feelings.

With deep concern about the fate of the city's redwood trees, the Environmental Planning Commission approved a motion, in a 4-1 vote, to construct a new hotel and office building in East Whisman.

The U.S. Forest Service awarded San Jose $6.6 million to plant, maintain and restore trees across the city.

The CPUC is considering a rule that would gut the payments that solar panels on apartment buildings receive, and many housing groups are blazing mad about it.

A long-awaited, controversial report weighs updates to standards that state officials say have failed to protect fish and wildlife. But environmentalists, Native tribes and others already are furious about how long this has taken—and the state is years away from taking action.

Outbreaks have wreaked havoc on the state’s river ecosystems for years. But this year was different. Faster, colder river waters led to fewer outbreaks of the harmful algae.

An international team found that the amount of near-surface permafrost could drop by 93% compared to the preindustrial period of 1850 to 1900. Permafrost may exist only in the eastern Siberian uplands, Canadian High Arctic Archipelago and northernmost Greenland—as it did in the mid-Pliocene Warm Period.

The irrigation bill, which aims to force businesses and institutions to remove their lawns, now goes to the governor.

Hydrogen fueling stations will get 15 percent of funds in a state program — even though Californians own only about 12,000 hydrogen cars. The funds come from fees paid by drivers.

There’s an official state bird, mineral, tree, fish, insect, lichen, fabric, sport, dance, soil and even dinosaur.

About 5,300 companies would file annual emissions reports. The aim is to hold corporations accountable for the role they play in climate change.

California wildfires every year emit as much carbon as almost 2 million cars, posing a threat to efforts to battle climate change.

Satellite data from across California’s landscapes reveal an increase in nitrogen dioxide levels in remote forest areas, and wildfire and soil emissions are likely the reasons why, according to a paper from UC Davis published in the journal Environmental Research Letters.

The Biden administration is one step away from designating the first national marine sanctuary nominated by a tribe. Tribal members of the Chumash, who have lobbied for the creation of this Central Coast preserve for more than a decade, would be involved in managing it.

With Foothills Nature Preserve seeing a surge of visitors, Palo Alto is preparing to install new pathways, parking areas and traffic-calming measures.

In a new study published Aug. 17 in the journal Science, fossil records at La Brea Tar Pits indicate that the disappearance of California’s sabertooth cats, dire wolves and other large mammals nearly 13,000 years ago was linked to rising temperatures and fire activity spurred by people.

With only 12,000 hydrogen cars on the road, and just two models for sale, California lawmakers are debating how much state money should support them.

Lehigh Cement Plant, which provided material for landmark Bay Area structures, will remain closed permanently, following an agreement with Santa Clara County.

Frustration runs deep among medical cannabis patients and advocates who say the commercial market created by Proposition 64 in 2016 isn’t meeting their needs.

Huge winter rains and snow are continuing to reduce fire risk, experts say.

After nearly 30 years of efforts to clean up a toxic-chemical plume beneath Palo Alto's Barron Park neighborhood, the state agency overseeing the site reports that the program's goals have largely been met.

The total number of climate change court cases has more than doubled since 2017 and is growing worldwide. These findings, published by the UN Environment Programme and the Sabin Center for Climate Change Law at Columbia University, show that climate litigation is becoming an integral part of securing climate action and justice.

Raising Shasta Dam to increase its capacity would provide 634,000 more acre-feet of water per year, legislators say. But that assumes there will always be enough precipitation, and the move risks flooding sacred Native American lands and harming local habitats.

The environmental costs of ending water diversions from Mono Lake to Los Angeles would be mixed: It might help a shore bird habitat but would require changes that increase carbon emissions.

As nights warm and droughts intensify, past models predicting fire behavior have become unreliable. So California is working with analysts and tapping into new technology to figure out how to attack wildfires. Gleaned from military satellites, drones and infrared mapping, the information is spat out in real time and triaged by a fire behavior analyst.