Sea level rise combined with future coastal storms will be costlier and more destructive to California than earthquakes or wildfires.

A new study by United States Geological Survey researchers examines how future coastal storms and waves will affect California’s shoreline via erosion and flooding in conjunction with sea-level rise. And it puts numbers on the cost and people affected by California’s future storms and waves: about $150 billion in property and 600,000 people by 2100. “Bay Area communities account for two-thirds of the projected impacts across the state over the next century,” explains lead author Patrick Barnard. “Many communities, such...
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Coyote Valley, an important wildlife corridor connecting the Santa Cruz and Diablo Mountain ranges, would receive new protections under state legislation introduced in April.

AB 948 would create a new Coyote Valley Conservation Program, to be administered by the Santa Clara Open Space Authority. The bill would expand the existing protected area from 7,400 acres to 17,000 acres, and boost new efforts to preserve its resources. Coyote Valley, which drains the ecologically rich upper watershed of Coyote Creek, has long faced development threats as surrounding South Bay communities expand. The area provides critical habitat for critters large and small, which use the valley—especially its...
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Invasive clams and freshwater exports from the Delta have created dramatic and unsustainable changes in the San Francisco Estuary’s foodweb over the past 50 years.

 A study by UC Davis researchers found a 97% decline in phytoplankton, the microscopic foundation of the food chain. “Understanding the causes for the decline in the pelagic [water column] community is essential so that efficient solutions can be implemented,” says Bruce Hammock, a research scientist at the UC Davis School of Veterinary Medicine’s Aquatic Health Program. The invasive clams (Potamocorbula amurensis), originally from Asia, have been over-consuming phytoplankton and zooplankton for more than 30 years, and have long been...
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New shoreline strategies piloted in Puget Sound could help young fish in urbanized estuaries elsewhere.

When Seattle rebuilt its seawall in 2017, they hoped to make the hardened shoreline a little less daunting for the young salmon that hug it closely on their journey to the ocean. Project managers took a three-pronged approach. First, they added texture and complexity into the new concrete seawall to encourage invertebrates, food for the young fish, to settle in nooks and crannies and on horizontal “shelves” built into the wall. Mussels, ecosystem engineers, have settled on the shelves and...
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While it’s been a tough year for marine mammals along the California coast, local San Francisco Bay conditions may have afforded scientists a unique opportunity to study emerging ocean problems.

The Marine Mammal Center participated in 12 necropsies of deceased gray whales in and around the Bay. Later in the year, malnourished Guadalupe fur seals stranded along the coast at a historically high rate. In June, a surprisingly early toxic algae bloom off the coast of San Luis Obispo caused a rash of cases of Domoic Acid Toxicity among pregnant and yearling California sea lions. Dr. Cara Field, staff veterinarian at The Marine Mammal Center, has some theories as to...
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Joaquin Esquivel is impatient with the narrative that has dominated California water policy for decades, especially when it comes to the Delta and the eternal tug-of-war between farms, cities and the environment.

“For so long in the water space you’ve had these false dichotomies where you are being told you have to choose one or the other,” says Esquivel, who Governor Gavin Newsom appointed Chair of the State Water Resources Control Board in February. “These narratives can fuel themselves, they take root in communities, but they don’t really do much to get to the heart of the policy question.” A native of the Coachella Valley, Esquivel served on the State Board for...
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Jessica Fain got a crash course in resilience planning when Hurricane Sandy hit the East Coast in 2012.

Fain, Planning Director for the Bay Conservation and Development Commission (BCDC) since October, was part of a three-person office in the Waterfront and Open Space Division of New York’s Department of City Planning. “We were doing a small study on adaptation options,” she recalls. “In the middle of that, Sandy hit. Suddenly all eyes were on us.” Fain brings that background to a setting unlike New York in many ways. Instead of five boroughs, for example, she’s dealing with a...
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Therese McMillan inherits huge challenges as the new Executive Director of the Metropolitan Transportation Commission.

The Bay Area region is beleaguered by traffic, a crippling housing shortage, and growing inequality. MTC plays a role in all these areas. “We have a master coordinator role in being able to knit the region together through land use and transportation planning, and major dollar investments,” says McMillan of the MTC, which distributes billions of public transportation dollars collected annually by local, state and federal governments, although she notes that the agency doesn’t “have land use authority, or our...
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Susan Tatayon wants to bridge the emerging communication gap between Delta science and policy.

While Tatayon, who was installed as Chair of the Delta Stewardship Council in January, sees good communication efforts on the part of council scientists and staff, not everyone on the receiving end gets their drift. “What I’m learning from some council members and others is that they don’t understand the connection between the science being done and the policies they want to make.” Tatayon assumes her new position after a career that includes stints at The Nature Conservancy, the U.S....
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Kris Tjernell thinks there could hardly be more a more exciting time to be leading conservation and water management programs in the country’s most populous and perhaps most water-stressed state.

“I see opportunities for big change,” says Tjernell, who was appointed California Department of Water Resources’ deputy director last May. At the time the DWR was adopting a new approach toward land and water management—especially the inclusion of floodplain restoration in many of its flood control projects. “We are demanding a lot out of the landscape of the Delta, and we are demanding a lot out of the Central Valley and beyond,” Tjernell says, describing a system of resource allocation...
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Sandra Scoggin has the qualities the San Francisco Bay Joint Venture needs in a leader at what she calls a ‘pivot point’ for the partnership.

In the early days, when the wetland protection and restoration landscape was less complex, the JV “could be everywhere and do everything.” Now it needs to be more strategic. “I’m a listener, a synthesizer, and I’m pretty good at herding diverse interests toward shared goals,” says Scoggin, who is taking over the 20-year-old wildlife habitat venture after 16 years in second seat. “The JV is built on deep and lasting relationships,” she says, both awe and pride in her voice....
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Louise Conrad sees the Delta Stewardship Council’s science program, which she now leads, as poised to shift into a new gear – from breaking down the science landscape and building a new foundation for Delta science to actually doing it.

 “With the update of the Delta science plan done, we can now can sink our teeth into some topical issues our scientists can be passionate about, such as aquatic invasive vegetation, microcystis and climate change, for example,” says the former Department of Water Resources (DWR) fish biologist. Conrad grew up in Philadelphia and developed an interest in conservation on summer road trips to western national parks in their family’s Dodge Ram. “My mom sewed us individual seat covers with pockets...
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Dana Brechwald is trying to bring rising sea levels to the forefront of the conversation for Bay Area communities and their affiliated agencies.

Joining the Bay Conservation and Development Commission as Program Manager for the Adapting to Rising Tides ( ART) program last November, Brechwald oversees multiple projects assessing coastal areas that are vulnerable to sea level rise. “We’re working at every scale, from the federal level down to community members who will be affected by climate adaptation,” she explains. Brechwald and her team cover the gamut of a community’s assets — from transportation systems to areas set aside for more development or...
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Dave Halsing is in a race against sea level rise to restore the South Bay salt ponds.

 “The existential challenge is doing marsh restoration fast enough to get it into place and established before sea level rise really starts to kick in,” says Halsing, the new Executive Project Director for the massive, 15,000-acre South Bay Salt Pond Restoration Project. The thoughtful and reflective restoration manager is seizing the reins from previous director John Bourgeois to lead the 50-year, $1 billion effort that is the largest wetland restoration project on the West Coast. “I had to take a...
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Manuel Oliva’s career has been focused on climate change and conservation since his days as an engineering graduate student at the University of Maryland.

“I’ve done the entire spectrum, from the federal to the state to the NGO perspective,” says the incoming CEO of Point Blue, the Petaluma-based nonprofit focused on environmental conservation and research. “This gives me a really good overview on how to best support our work as an organization.” Most recently Oliva was an acting director of the Development Resources and Disaster Assistance Division at the USDA’s Foreign Agricultural Service. His work there focused on climate-smart agriculture projects, such as working...
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Melissa Foley’s list of concerns as the new head of San Francisco Bay’s premier water-quality program is long: microplastics, pharmaceuticals, PFASs, and other chemicals and contaminants entering the Bay through runoff and treated sewage.

An interdisciplinary scientist trained in marine ecology, with experience in policy, management, and public outreach, Foley assumed leadership late last year of the Regional Monitoring Program for Water Quality in San Francisco Bay (RMP). Along with overseeing the RMP’s rigorous efforts to study and manage Bay pollutants, Foley who comes to the RMP from New Zealand’s Auckland Council, where she used long-term environmental monitoring data to inform both regional and national management and policy strategies, says she’ll draw on her...
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Pied-billed grebes are providing valuable biocontrol services in the Estuary by consuming red swamp crayfish, an invasive crustacean known to disrupt ecosystems.

Although grebes are primarily fish-eaters (they swallow their own feathers to cushion the sharp bones), this species also consumes significant numbers of crayfish, sometimes detaching the pincers before swallowing the good part. Native to southern swamps and bayous, the red swamp crayfish has been introduced in the Sacramento Valley and San Francisco Delta. According to the US Geological Survey, the species is established at Coyote Hills Regional Park and elsewhere around the Bay. The crayfish preys on the larval stages of...
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Haggles over the what, where, and when of Delta conservation got a reset this January with the state’s release of a new collaborative framework focused on opportunities, not species.

The California Department of Fish & Wildlife’s new Delta Conservation Framework tries to fill the vision vacuum left by former Governor Brown’s early pivot away from the 2013 Bay-Delta Conservation Plan, a plan that touched in some shape or way on 160,000 acres of the Delta. “It was too big and too unwieldy for people to manage, and there were too many questions about its effects, and how it would be implemented – particularly as it related to the Delta...
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A gene tells Chinook salmon whether to return to their native streams to spawn in spring, fall, or sometime in-between, according to new research.

The finding, by UC Davis graduate student Tasha Thompson and colleagues, helps distinguish between spring- and fall-run fish—and could help save spring-run salmon from human-hastened extinction. Fall-run populations enter rivers in autumn and spawn immediately. By contrast, spring-run fish return during peak snowmelt, linger in tributaries through summer, and spawn around the same time as their fall-run brethren. “Spring-run fish are special for a lot of reasons,” Thompson says. Spring-run salmon historically spawned in the upper portion of watersheds, nourishing...
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High Sierra lakes are not immune to climate change, but snowpack provides a moderating effect.

Researchers with the University of California analyzed climate and water-temperature data from 19 lakes scattered throughout the Sierra Nevada, including Emerald Lake in Sequoia-Kings Canyon National Park, where UC runs a long-term study site. They found that summer air temperatures at Emerald Lake are warming 1.5 degrees Fahrenheit per decade — a rate lead author Steven Sadro says is as high as nearly anywhere on the planet. Yet to the researchers’ surprise, says Sadro, an assistant professor of Environmental Science...
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About Us

The San Francisco Bay-Delta is named in the federal Clean Water Act as one of 28 “estuaries of national significance." For over 20 years, the San Francisco Estuary Partnership has worked together with local communities and federal and state agencies to improve the health of California’s most urbanized estuary.

San Francisco Estuary Partnership 1515 Clay Street, Suite 1400 Oakland, CA 94612 (510) 622-2304

Association of Bay Area Governments