The kind of flooding and mudslides that recently devastated the town of Montecito could also happen in the Bay Area, thanks to the more intense atmospheric rivers that—along with more frequent droughts and longer, fiercer wildfire seasons—climate change is expected to bring to California.

Climate Resilience



07
Feb

The kind of flooding and mudslides that recently devastated the town of Montecito could also happen in the Bay Area, thanks to the more intense atmospheric rivers that—along with more frequent droughts and longer, fiercer wildfire seasons—climate change is expected to bring to California.

These swathes of water vapor from the tropics can be hundreds of miles wide and thousands of miles long, and bring with them enormous quantities of water; the one that arrived in early January dropped more than 30 inches of rain statewide. In Montecito, which had just been ravaged by December’s Thomas Fire, half an inch of rain fell in a matter of minutes and caused deadly flooding and mudslides. In the Bay Area, atmospheric rivers already cause more than half of the major floods, and more than 70 percent of those in the North Bay. But predicting when and where flood waters will rise is difficult. While the National Weather Service has radars that track storms regionally, the current...
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07
Feb

Despite some unnerving trends, Bay Area landowners and open-space authorities may be able to reduce the potential for another calamitous wildfire by modifying their land-management practices.

According to a worrisome article in the January issue of Bay Nature, the region’s future is increasingly fire-prone, thanks to climate change, population trends, and a legacy of strict fire suppression. Yet while the first two are beyond the scope of a single city or agency to manage, reducing fuel loads in forests and shrublands more actively, through prescribed burns and mechanical thinning, may help mitigate future catastrophes. At a gathering organized by the Bay Area Open Space Council last November, attendees seemed receptive to the idea. East Bay Regional Park District general manager Bob Doyle implored others to use the recent North Bay fires as motivation to re-examine their fuels and forest-management practices. Cyndy Shafer of California State Parks said that while...
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07
Feb

An easily overlooked slough is pointing a finger of uncertainty at Oakland’s plans for ballpark redevelopment, transit safety and resilient neighborhoods.

From the pedestrian bridge between the Oakland Coliseum and the BART station, the view of Damon Slough–a 25-foot-wide canal of muddy, litter-choked water–belies its increasing prominence in the flood-futures of east Oakland. A study by the Metropolitan Transportation Commission did the math, adding the impacts of rising sea levels on these Oakland flatlands to predictions of more frequent, more extreme storm events and urban runoff. “That’s when water starts coming out of manholes,” says Kris May, a coastal engineer who worked on the study. Redevelopment plans for the Coliseum area take some sea level rise into account, but not the water added by storms to aging drainage systems and swollen sloughs. For the area around the Coliseum, the extra effects...
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07
Feb

In Humboldt County’s coastal dunes, a multi-agency partnership is restoring the native plant community to build resilience to sea level rise.

The project, along with four others in the Bay Area and Southern California, is featured in a new report, Case Studies of Natural Shoreline Infrastructure in Coastal California. Much of the state’s dunescape was built over or hauled away before its value as habitat for unique species and a buffer against climate change was recognized. San Francisco’s dunes are long gone, and with them the endemic Xerces blue butterfly. Humboldt’s 32-mile stretch still shelters endangered plants like the Menzies’ wallflower and beach layia. Invasive European beachgrass not only chokes out natives; it pins the dunes in place, constraining their ability to move inland as the sea encroaches.  Led by US Fish and Wildlife Service biologist Andrea Pickart, federal and state...
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15
Dec

All In for One Water

As climate change threatens to upend precipitation patterns and disrupt water supplies, agencies are increasingly searching for ways to wring more benefits out of every drop. Valley Water (Santa Clara) is seeking to take integrated water management planning to the next level through its One Water initiative. “The idea is to manage all water — treated water, groundwater, stormwater, flood water, water for habitat, species and Baylands — as one resource,” says the District’s Brian Mendenhall.
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14
Dec

After the Burn Comes the Rain

When fire strikes upper watersheds like it did last October, responses can vary widely depending on land use and ownership. “We view wildfire as a natural process,” says Cyndy Shafer of California State Parks. Wildlands and backcountry areas have largely been left alone, but it’s a different story when lands are managed not for ecosystems but for drinking-water quality. “You want to minimize the erosion that occurs on site,” says Scott Hill of the East Bay Municipal Utility District, “we don’t want sediment in our storage reservoirs.” What’s best must be considered on a case-by-case basis.
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13
Dec

Worries Over Puny Pumps

Pump capacity, reliability, and cost are already big concerns for flood-control and sea level rise managers. “Gallon for gallon, it’s easily the most expensive way to deal with water,” says Roger Leventhal, a senior engineer with the Marin County Department of Public Works. “It’s not the ideal solution, but it’s the one we’re falling into.” New pumps, while costly in both dollars and electricity, are currently in the works. “It seems unlikely for us as a region to get away with increasing the number of pumps 100-fold, which is what we would have to do,” says Lindy Lowe, former Bay Conservation and Development Commision planning director.
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Bridges - public shore
01
Dec

Public Sediment Favors Mud

“We’re finally seeing a change in paradigm,” says Brett Milligan regarding how sediment is treated in the Bay Area. What was once considered waste is now considered a resource, and a group called “Public Sediment,” part of the Bay Area Resilient by Design Challenge, are proposing mud rooms, mud berms, mud pathways, and top-to-bottom mud management to better build up Bay Area shorelines and keep them above rising water.
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13
Nov

A wedge of gravel, mud, and grasses irrigated by treated wastewater outperforms all expectations as a prototype for climate change adaptation.

Experts monitoring 16 months of plant growth on a humpbacked levee experiment on the San Leandro shore, a project led by the Oro Loma Sanitary District, found early weed colonization followed by rapid dominance of target native perennial vegetation. “Native vegetation outcompeted weeds,” says Peter Baye, who designed the planting palette for this multi-benefit infrastructure project. The results were apparent during an October 2017 tour for international design teams looking at homegrown innovations in sea level rise adaptation as part of the Resilient By Design Bay Area Challenge (see photo). With so much of the Bay shoreline in need of protection from increased flooding, as well as habitat for wetland species at risk and new wastewater infrastructure, progress on this experimental levee is being...
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13
Nov

“Sometimes doing nothing is the best option” is just one of the sometimes counterintuitive tips for post-fire restoration compiled by the Napa County Resource Conservation District in the wake of October’s North Bay firestorm.

A new web page simply titled “Fire” contains a suite of online resources for land owners and managers. From finding sources of invasive-free native plant seed to recommending that burned soils be left undisturbed wherever possible (so as to maintain their natural hydrophobic properties, which help prevent erosion), the website offers a trove of tips to help maximize the recovery of a healthy landscape in a series of “After the Fire” fact sheets that include titles such as Dos and Don’ts, Preparing for Winter, and Some Notes About Seeding Grasses. JC
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13
Nov

In hot water due to climate change, many ocean fish are moving to higher latitudes or deeper waters to find the conditions they need to survive.

These include lobster, black bass, and Atlantic cod, all of which have supported iconic fisheries along the Eastern seaboard of the United States. “Ocean animals are moving ten times faster than animals fleeing climate change on land,” says Rutgers University marine biologist Malin Pinsky, whose Rutgers OceanAdapt website enables visitors to explore changes in marine species distributions over recent decades. These range shifts are causing headaches for fishing fleets, which are forced to head farther out to sea or hundreds of miles further from home ports. But fishes moving north face a catch-22: Water absorbs carbon dioxide more readily when cold, meaning rising greenhouse gas concentrations are causing the oceans to acidify much faster at the poles. KMW
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13
Nov

The California Legislature has made state history by passing SB-5, which acknowledges the importance of parks and climate-change resiliency for some of California’s most disadvantaged communities.

“Park access should not be considered a luxury. It is a right,” says Mary Creasman, California Director of Public Affairs for The Trust for Public Land. The bill—known as the California Drought, Water, Parks, Climate, Coastal Protection, and Outdoor Access for All Act of 2018—recognizes the importance parks play in a community’s quality of life as well as the lack of access to them in urban and disadvantaged communities. The bill provides definitions of “disadvantaged” and “severely disadvantaged” communities and provides them with guaranteed funding. SB-5 also includes funding to improve climate change and sea level rise resiliency in at-risk areas. “With existing funding sources disappearing, SB-5 comes at a critical moment to demonstrate California’s renewed commitment to conservation and parks...
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Bridges - public shore
26
Sep

Drought Contingency

Motivated by the recent drought, local water agencies have formed an unprecedented partnership aimed at reducing the impact of future dry spells. The Bay Area Regional Reliability partnership consists of eight of the region’s larger water districts. “For the first time in the history of water deliver in the Bay Area, the water utilities are talking about how to assist each other when there is a shortage.”
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24
Sep

Prepping for Sea Level Rise—Who’s on First?

On an uncommonly sultry Thursday evening at the end of August several dozen people gathered in a grove at San Mateo’s Coyote Point, sipping beer and listening to a presentation on sea level rise by staff from San Mateo County’s Office of Sustainability. Then, accompanied by the sound of gunshots from a nearby firing range, everyone trooped down to the Bay’s edge, where temporary markers indicated how high the water would rise under three different scenarios. In the most dire projection, water would cover the heads of the people standing on the beach. The event, “Shrinking Shores,” was presented by Sea Change San Mateo County, one of a handful of county-level projects around the Bay that aim to assess local vulnerability to sea...
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22
Sep

High Road for the Wettest Highway?

As Bay Area cities and counties grapple with the formidable challenge of preparing for a higher San Francisco Bay, there is perhaps no better example of the obstacles and opportunities than the effort underway to adapt Highway 37. The 21-mile North Bay corridor running from Vallejo to Novato has long been a source of tranquility and frustration. The highway offers sweeping views of tidal baylands dotted with roosting waterfowl and shorebirds plumbing mudflats for food, along with mile-upon-mile of open space. And commuters often have ample time to enjoy the scenery: Highway 37 is one of the most congested in the region. Congestion isn’t the only problem facing the highway. This past winter a combination of storms and high tides...
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11
Aug

Simultaneous lawsuits filed against 37 fossil fuel companies by Marin and San Mateo Counties, along with the City of Imperial Beach, over sea level rise may open new front in climate battle.

 The suits, filed in California Superior Court, seek compensatory and punitive damages and other remedies for the ongoing harm that oil, gas and coal cause by contributing to global warming and sea level rise. A 2009 Pacific Institute study calculated that San Mateo has more property and people at risk from sea level rise than any California county, while in Marin more than 12,000 homes, businesses and institutions, with an assessed value of $16 billion could be at risk from tides and surge flooding by the end of the century. The suits claim that the companies have known about the dangers posed by greenhouse gases for nearly fifty years and sought to conceal them from the public and encourage the...
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20
Jun

Flood Plan Boosts Floodplain

The 2017 update to the Central Valley Flood Protection Plan, to be released later this summer, radically revises the flood control strategies that have prevailed for more than a century. The plan recognizes the connections between the flood system, the water system and the ecosystem, and relies less on levees and more on floodplain restoration to upgrade the state’s aging and inadequate flood control infrastructure.
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27
Mar

Going Local Buys Future for Bayshore

When Bay Area voters approved Measure AA in June 2016 they not only created a significant new source of environmental funding, they also made California history, levying a parcel tax across the entire region for the first time. The measure, which resulted in creation of the SF Bay Restoration Authority, may be a catalyst for a regional approach to wetland restoration, rising sea levels and other challenges.
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20
Jun

Deliquescent Summit on Ocean Climate

Walking in the door of the fourth Ocean Climate Summit this May and finding Amy Hutzel, long-time chair of the committee in charge of implementing a conservation plan for the San Francisco Estuary, I asked her what she was doing out of her watershed? “Dipping my toe in the Pacific, “ she said. “For a while now, we’ve been working to build partnerships inland and offshore. It’s all one estuary.”
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09
Mar

Mainstreaming Resilience

Whatever the “perturbation” coming our way – a flood, a drought, a weed or Donald Trump – our recovery, in the aftermath, depends on something ecologists call resilience. It’s a term everyone is pasting onto their management initiatives these days. But what exactly does it mean?
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