California
California a botanical and climate change hot spot
From coastal redwoods and Joshua trees to golden poppies and sagebrush, California is a global botanical hotspot. It’s also a place confronted with extreme heat, wildfires and crumbling coastlines.
The state’s natural beauty and history of pioneering conservation efforts make it a test bed for protecting biodiversity in the face of current and future climate change, argues a study led by the University of California, Davis.
Published July 29 in Proceedings of the National Academy of Sciences, the study, “Climate Change and California’s Terrestrial Biodiversity,” is part of a special PNAS issue on California sustainability.
The study concludes that California’s 30 x 30 Initiative to preserve 30% of its lands and coastal waters by 2030, along with efforts to harmonize biodiversity conservation and renewable energy, is a promising step. It also highlights the need for California to shift away from its decades-long fire suppression policies and adopt fire strategies reflective of new fire regimes.
“California has had a history for over 100 years of being a leader in protecting the environment—from setting aside parks for people to climate adaptation,” said lead author Susan Harrison, a professor in the UC Davis Department of Environmental Science and Policy. “The threats are extreme and unprecedented, but California has always been a state where creative new solutions have emerged.”
California’s climate has become warmer, drier and more variable since the mid-1900s, the study noted. It examined major threats climate change poses to the state’s biodiversity and sustainability. These include the impacts of shifting plant biodiversity, land-use change, wildfire and renewable energy, and the policy responses to those challenges.
Hot spots on the move
The authors modeled the distribution of about 6,400 native plant species, identifying 15 regional plant biodiversity hot spots—from small areas, such as the Channel Islands, to vast parts of the Sierra Nevada and coastal ranges.
The models indicate these hot spots could lose an average of 19% of their native plant species by 2080 under current climate projections. California’s complex mosaic of microclimates means the state’s species could respond in a wide variety of ways to climate change. Some hot spots are expected to move toward the coast or upslope, while others remain or disappear.
Those stakes help outline the need for renewable energy projects to align with expected biodiversity shifts and needs. For example, Molok Luyuk, or Condor Ridge (formerly Walker Ridge), was slated for wind development projects along its blustery ridge despite its rich biodiversity, before earning protection as part of Berryessa Snow Mountain National Monument.
“This paper is pointing out that we need to be proactive,” said co-author James H. Thorne, a research scientist with the UC Davis Environmental Science and Policy department. “We can’t be reactive like, ‘Oh, this wildfire is out of control. Oh, this species is disappearing. Oh, we misplaced where this green energy site should go.’ We have tools that can be used, some of which we discuss in this paper.”
A new mindset
Wildfire is a nearly year-round reminder of the state’s hotter, drier climate.
The authors write that fire management policies in California are less progressive than its policies for climate and conservation. The paper encourages the state to move away from its longstanding policy of fire suppression and adapt its strategies to use fire as an ecosystem management tool.
State and federal agencies have set ambitious targets to increase the use of fire in land management but have been stymied by bans on prescribed fire motivated by safety and air quality concerns.
Harrison calls wildfire and climate change “game-changers” for how we think about conservation.
“Traditionally, ‘conservation’ had a restrictive meaning—we try to keep things the same. If anything goes missing, we try to put it back,” Harrison said. “But now, we require a different mindset. We need to be willing to modify traditional views of conservation. We need continual innovation.”
More information:
Harrison, Susan, Climate change and California’s terrestrial biodiversity, Proceedings of the National Academy of Sciences (2024). DOI: 10.1073/pnas.2310074121. doi.org/10.1073/pnas.2310074121
Citation:
California a botanical and climate change hot spot (2024, July 29)
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California
Rain continues in parts of California reeling from flooding and high tides – WTOP News
CORTE MADERA, Calif. (AP) — Crews cleared mud from key California highways as forecasters warned Sunday that more thunderstorms were…
CORTE MADERA, Calif. (AP) — Crews cleared mud from key California highways as forecasters warned Sunday that more thunderstorms were on the way after downpours and high tides caused flooding, road closures and rescues of people trapped in cars.
Five northern counties remained under a flood watch, with up to three inches (7.6 cm) of rain possible through Monday night in areas that have been drenched off and on since around Christmas, said the National Weather Service office in Eureka. At least a foot (.3 meters) of snow was likely in the mountains.
To the south near the San Francisco Bay Area, waters were slowly receding after roadways from Sausalito to San Rafael were flooded during heavy rain that coincided with record-breaking “ King Tides.” Such tides occur when the moon is in its closest position to the Earth, creating a stronger gravitational pull.
Some people kayaked along swamped streets, while others waded through water above their knees. Authorities were called to assist when cars got stuck in water as high as 3 and 4 feet (1.1 and 1.2 meters), Marin County Sheriff’s Sgt. Michael Dobbins said Saturday.
“I’ve been around here for the King Tides and I’ve never seen it this high. Never,” Jeremy Hager of San Rafael told KTVU-TV.
Flooding was reported across Marin, Sonoma, Alameda, San Mateo and San Francisco counties.
While the tides were waning, lingering thunderstorms on Sunday could cause additional problems throughout low-lying areas, forecasters said. “For anyone driving, slow down and allow extra time to reach your destination,” the Bay Area office of the weather service warned on social media.
Farther south in Santa Barbara County, a key highway was reopened Sunday after it was blocked for most of the weekend near Goleta due to a series of mudslides. A man died after he was swept into a creek during the storm, the sheriff’s office said Saturday.
Parts of Santa Barbara County received more than four inches (10 cm) of rain over two days, the weather service said Sunday.
After a mostly dry autumn, California has been hit by a series of powerful winter storms that brought the wettest holiday season to the state in years.
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California
California’s gubernatorial race heats up as Newsom’s term nears end, with many contenders
FRESNO, Calif. (FOX26) — In just over a year, Gavin Newsom’s term as California’s governor will come to an end, capping off nearly eight years in office.
Now the question is – who will take over once he steps down?
We spoke to political scientist Nathan Monroe about what could be one of Californias most unpredictable gubernatorial races yet.
With Governor Gavin Newsom’s term ending, the race to replace him begins.
This race will determine who leads the worlds fifth largest economy at a time when California is facing issues such as housing and affordability.
Californias next gubernatorial election is shaping up to be crowded – and for the first time in years – there’s no incumbent on the ballot.
“You say, well, just which democrat is going to win, right? Like, sort of republicans don’t have a shot. But what we have to keep in mind, right, is that the rules of elections matter. And in California, we have the top two primary system,” said Nathan Monroe, a Political Science Professor at UC Merced.
More than a dozen candidates are vying for the spot.
On the democratic side, contenders include former U.S. Secretary of Health and Human Services Xavier barrera, former U.S. Representative Katie Porter, Representative Eric Swalwell, former Los Angeles Mayor Antonio Villaraigosa, and former State Controller Betty Yee.
Political experts say the size of the field could make turnout and name recognition decisive and could lead to unexpected results in the primary.
“But if you divide that pie up by just two, and you divide the democratic pie up, which is admittedly a larger pie, by 7 or 8, the concern you get here is that democrats are going to lose out on even running to the general election. So even though there might be more democratic votes to be found in California for governor, they might not have a shot to cast those ballots for a democrat on the general election ballot,” said Monroe.
Monroe says party leaders may need to step in soon.
“I think the concern has to be among voters and I’m sure among the party leaders, so to speak, right, the party leaders sort of amorphously, is that they’ve got to figure out a way to delicately, you know, assure some candidates out of the race and figure out which candidates those should be and figure out how to manage those personalities and try to coordinate all the things that go in and around a gubernatorial election,” said Monroe.
On the Republican side, former Riverside County Sheriff Chad Bianco and Fox News contributor Steve Hilton.
With just a few months from the midterm elections, Monroe says both parties need to organize.
“What’s happening behind the scenes for the parties to try to coordinate themselves to make sure that the field that they offer to voters in June is a field that gives them the best chance for their best candidate to go forward to the general election,” said Monroe.
The primary election is set for June, with the general election in December.
California
Heavy rain, high tides cause flooding along stretch of Northern California
CORTE MADERA, Calif. (AP) — Heavy rain and high tides believed to be the most severe in two decades caused flooding in parts of Northern California on Saturday, prompting road closures and rescues of residents trapped in their cars.
Roadways through a 15-mile (24-kilometer) stretch from the Sausalito area to San Rafael were flooded after a downpour coincided with record-breaking “ King Tides,” Marin County Sheriff’s Sgt. Michael Dobbins said.
No injuries were reported but authorities were called to assist when cars got stuck in floodwater as high as three and four feet (1.1 and 1.2 meters), he said.
“There is a lot of water in the roadways,” Dobbins said, adding the tides were reportedly the highest in more than two decades. “Along with heavy rains, it just created the perfect storm for flooding on the streets.”
Authorities in the communities near San Francisco asked residents to stay home wherever possible until waters recede. Some residents kayaked along what normally would be city streets. Others waded out in water that passed their knees.
A flood warning was in place for the San Francisco area until 2 p.m. Saturday and an advisory until 2 p.m. Sunday, according to the National Weather Service in San Francisco.
King Tides occur when the sun, moon and Earth are in alignment and the moon is in its closest position to the Earth, creating a stronger gravitational pull.
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