Restoration projects, like species, evolve. The Sonoma Creek Enhancement Project, originally about mosquito control, has shown itself to be a boon to special-status tidal marsh wildlife as well. More than a decade of adaptive management actions made that happen. The existing marsh, formed rapidly beginning in the 1960s by deposited sediment, lacked the dendritic channels of a mature marsh. High tides brought in water that pooled in a central basin and didn’t drain out, providing breeding habitat for mosquitos. The disadvantages of chemical treatment prompted land managers to look for alternatives. So in the 2000s, the Marin-Sonoma Mosquito and Vector Control District teamed up with the US Fish & Wildlife Service (the land manager), Audubon California, and environmental scientists Daniel...Read More
At a glance, the recent winter storms and inches of snow in the Sierra seem like a reassuring sign: more snow means more snow melt, which means more water moving through our freshwater systems during dry summer months. But it turns out that there are different types of snow with differing levels of moisture locked up inside — and the latest Sierra snowfall appears to be holding less water than usual. This means the Bay’s streams and estuaries could have drier conditions ahead, despite this winter’s semi-regular storms. Typically, snow that falls along the Sierra has a high moisture content because of the mountain range’s proximity to the Pacific Ocean, says Dan McEvoy, a regional climatologist with the Western Regional...Read More
In this podcast, Julie Beagle, a former lead scientist at the SF Estuary Institute now the Army Corps, tells what she calls "wicked scary" sea level rise stories. Beagle also describes several kinds of “nature-based” treatments that can delay and soften the onslaught and also addresses the problem of scale.Read More
That’s one key takeaway from a review of environmental management and the use of science during the 2012-2016 drought commissioned by the Delta Science Program and published in the June 2020 issue of San Francisco Estuary and Watershed Science. “There are lots of mysteries about how to manage water to benefit species, agriculture, upstream and downstream users. I think science is going to be the best solution,” says lead author John Durand of UC Davis’ Center for Watershed Science. Durand and his team based their review on available reports and data, as well as discussions with agency staff, stakeholders and researchers. They focused on water management actions during the drought through the lens of four priorities identified by water managers:...Read More
Hydrogeologist Fadji Maina and colleague Erica Siirila-Woodburn of the Lawrence Berkeley National Laboratory ran simulations of wildfire effects in the Cosumnes River watershed (see map). “We chose the Cosumnes because it’s one of the largest rivers that has no dam in California,” explains Maina. The most significant findings concerned the way wildfire affects groundwater recharge and storage. “It depends on where the wildfire occurs,” says Maina. The underlying rocks—foothill volcanics or High Sierra granites—make a difference. Consistent with earlier studies, the model also showed more snow accumulation after wildfire, but unexpected results include a post-fire increase in evapotranspiration in some downslope areas. Another study focused on the effects of forest thinning on snowpack on the west side of Lake Tahoe. A team led by...Read More
In July, the Metropolitan Transportation Commission and the Association of Bay Area Governments released the draft of Plan Bay Area 2050, a 30-year plan to guide growth in the nine-county region. “The biggest new integration in the plan is a set of investments to protect our Bay and ocean shorelines from rising sea levels,” says MTC’s Dave Vautin. The plan calls for just under $20 billion in investments ranging from seawalls and traditional levees to horizontal levees and wetland restoration to protect communities and infrastructure. “The draft showcases how that system of infrastructure improvements could protect 98% of all homes at risk over the next 30-years, as well as all major highways, railways and the vast majority of offices and...Read More
A preliminary study by researchers with the International Monetary Fund’s Institute for Capacity Development, the University of Notre Dame, and Duke University found that each great whale sequesters an average of 33 tons of CO2 over its lifetime, taking that carbon out of the atmosphere for centuries: when a whale dies and sinks to the sea floor, it takes that carbon with it, says Joe Roman, conservation biologist and author of Whale. (Compare that to a tree, which sequesters about 48 pounds of CO2 per year.) Whales act as nutrient pumps in the ocean as they dive and feed and then surface, nourishing phytoplankton growth with their waste products, which contain the iron and nitrogen the marine algae need to...Read More
Valley groundwater pumping is calculated as the total water demand minus surface water deliveries. However, today’s water model relies on individually reported diversions across the entire valley, and compiling all these data is a slow process; by the time the numbers are crunched, assessments of groundwater use are already outdated. “It can take years,” says Jordan Goodrich of University of Waikato in New Zealand. “It’s one of the biggest problems we face in tracking the Central Valley water budget.” Overdrafting groundwater can cause subsidence, permanently reducing the storage capacity of aquifers as well as jeopardizing above-ground infrastructure that delivers water and controls flooding. In the March 2020 issue of San Francisco Estuary and Watershed Science, Goodrich and colleagues at Scripps...Read More
For Alameda County, climate vulnerability is no abstraction. The county feels the bite of both edges of the climate sword: fire and flood. There’s a lot at risk here, and cities, the East Bay Regional Park District, and other entities are engaging with climate adaptation on multiple fronts.Read More
In May, despite the now normal issues of groups gathering for video calls and virtual PowerPoints, the San Francisco Bay Restoration Authority voted unanimously to fund the early stages of a massive new infrastructure project along the North Richmond shoreline with a grant of $644,709. The shoreline is now one step closer to becoming home to a horizontal, or living, levee that provides both flood protection and habitat.Read More
As sea levels rise and land in the Delta sinks, agencies and landowners are recognizing that levees alone will not protect critical fresh water supplies and infrastructure. Encouraged by a recently vetted new method for calculating carbon offsets from wetlands, a flurry of new climate adaptation projects on publicly owned islands strewn along the central Delta corridor aim to defend against sea-level rise, restore habitat, and reduce greenhouse gas emissions. Until recently, the prospect of selling carbon credits in the Delta remained fairly abstract.Read More
While most activities ground to a halt in the COVID-19 crisis, nature didn’t skip a beat at urban farms across the Bay Area. Urban farms meet an array of local needs, whether it’s for organic food, living wage jobs, a community center, or a place to connect with nature. With the COVID crisis, and with many American communities touched by loss and fighting racism, these needs have become even more acute. Farms, gardens, and nurseries across the Bay Area are rising to the challenge. Times of extraordinary change reveal how future climate injustices may well play out: the “haves” marshal the means to protect themselves and the “have-nots” bear the burden of impacts. In particular, the nation is gaining painful...Read More
When heavy rains coincided with an extreme high tide in 2005, water from the Carquinez Strait overtopped flood protections in the City of Benicia. Making matters worse, the high seas also submerged stormwater outfalls. Water backed up stormdrains, inundating historic homes and small businesses. As tides keep rising, scenarios like this will play out more often―and with greater severity―along the Solano County shoreline.Read More
Many Yolo County farmers and ranchers are keenly aware of climate shifts and actively involved in GHG reduction strategies. Scott and Karen Stone run Yolo Land & Cattle, a 7,500-acre ranch that lies partly in the Blue Ridge Berryessa Natural Area. The Stones have planted riparian areas and hedgerows for carbon sequestration, use solar water pumps to reduce GHGs, and manage a 400-acre conservation easement for Swainson’s hawk on their irrigated pastureland.Read More
Never before has it been more important to imagine and invest in a future that is decidedly different than the world we are facing today. The COVID-19 pandemic and the protests sparked by police brutality have laid out in stark terms the underlying systemic inequalities and racism in our society that make poor, elderly, black, and brown people socioeconomically vulnerable and expose them to trauma and risk. These vulnerabilities will only be exacerbated by climate change, unless we work together now to achieve multiple objectives: address inequality and systemic racism; create equity in terms of health and access to opportunity for low-income communities of color; and invest in strategies to reduce the impacts of extreme storms, flooding, sea-level rise, wildfires,...Read More
Driving over the Bay flats toward the Dumbarton Bridge’s western approach in San Mateo County it’s easy to imagine how a few feet of sea level rise could submerge the roadway. The bridge touches down only 750 feet from the shoreline, and the approach skims just above the fill it’s built on. Countywide, a vulnerability assessment found that in a mid-range sea level rise scenario, property worth $34 billion would be flooded on the bayshore and the coast north of Half Moon Bay. “It’s not realistic to think that each city could address these challenges singlehandedly,” says County Supervisor Dave Pine...Read More
Flames have become the unofficial face of climate change for Sonoma County, in the wake of the catastrophic Tubbs and Kincade fires that tore through the northern parts of the county in 2017 and 2019. Together the two fires burned more than 114,000 acres, roughly a tenth of the county, claimed 22 lives, and destroyed almost 5,000 homes. However, increased frequency and severity of wildfire is only one of the many ways that climate change is poised to affect life in Sonoma County. “The fires got us all out of our silos,” says Lisa Micheli...Read More
Travel brochures for Napa County almost universally feature the same images: a valley floor carpeted with vineyards, nestled between hillsides dotted with spreading valley oaks. As climate change brings hotter days — and more of them — to the county, these twin pillars of the landscape, grapevines and oak trees, are both challenged by it and central to local resilience strategies.Read More
In the coastal getaway town of Stinson Beach, king tides and storm surges regularly put roads and parking lots underwater: wintertime events that give locals an unnerving idea of what rising sea level will look like for the small community. “We know sea-level rise is coming, but here, we say we’ve already got it,” says Stinson Beach homeowner Jeff Loomans, also the president of the Greater Farallones Association, which has been active in sea-level rise planning. Rising sea level is no longer a distant matter of if or when. Firm science and unyielding line graphs into the future make it clear: the swelling ocean is a reality that is shaping state development policy and challenging coastal communities. Pushed forward by...Read More
From head-on collisions in the 1980s to crippling congestion now, Highway 37 is a familiar headache for highway engineers. Fearing that engineers might not take full account of the vast marsh restorations underway in the area, the Sonoma Land Trust, the Coastal Conservancy, and others joined in a State Route 37-Baylands Group. In 2017, the group laid down markers: Whatever is done with the east-west highway must also improve the passage of tides and stormwaters north and south, not further impede those flows.Read More
Nothing could be stranger than sitting in the dark with thousands of suits and heels, watching a parade of promises to decarbonize from companies and countries large and small, reeling from the beauties of big screen rainforests and indigenous necklaces, and getting all choked up.
It was day two of the September 2018 Global Climate Action Summit in San Francisco when I felt it.
At first I wondered if I was simply starstruck. Most of us labor away trying to fix one small corner of the planet or another without seeing the likes of Harrison Ford, Al Gore, Michael Bloomberg, Van Jones, Jerry Brown – or the ministers or mayors of dozens of cities and countries – in person, on stage and at times angry enough to spit. And between these luminaries a steady stream of CEOs, corporate sustainability officers, and pension fund managers promising percentages of renewables and profits in their portfolios dedicated to the climate cause by 2020-2050.
I tried to give every speaker my full attention: the young man of Vuntut Gwichin heritage from the edge of the Yukon’s Arctic National Wildlife Refuge who pleaded with us not to enter his sacred lands with our drills and dependencies; all the women – swathed in bright patterns and head-scarfs – who kept punching their hearts. “My uncle in Uganda would take 129 years to emit the same amount of carbon as an American would in one year,” said Oxfam’s Winnie Byanyima.
“Our janitors are shutting off the lights you leave on,” said Aida Cardenas, speaking about the frontline workers she trains, mostly immigrants, who are excited to be part of climate change solutions in their new country.
The men on the stage, strutting about in feathers and pinstripes, spoke of hopes and dreams, money and power. “The notion that you can either do good or do well is a myth we have to collectively bust,” said New Jersey Governor Phil Murphy whose state is investing heavily in offshore wind farms.
“Climate change isn’t just about risks, it’s about opportunities,” said Blackrock sustainable investment manager Brian Deese.
But it wasn’t all these fine speeches that started the butterflies. Halfway through the second day of testimonials, it was a slight white-haired woman wrapped in an azure pashmina that pricked my tears. One minute she was on the silver screen with Alec Baldwin and the next she taking a seat on stage. She talked about trees. How trees can solve 30% of our carbon reduction problem. How we have to stop whacking them back in the Amazon and start planting them everywhere else. I couldn’t help thinking of Dr. Seuss and his truffala trees. Jane Goodall, over 80, is as fierce as my Lorax. Or my daughter’s Avatar.
Analyzing my take home feeling from the event I realized it wasn’t the usual fear – killer storms, tidal waves, no food for my kids to eat on a half-baked planet – nor a newfound sense of hope – I’ve always thought nature will get along just fine without us. What I felt was relief. People were actually doing something. Doing a lot. And there was so much more we could do.
As we all pumped fists in the dark, as the presentations went on and on and on because so many people and businesses and countries wanted to STEP UP, I realized how swayed I had let myself be by the doomsday news mill.
“We must be like the river, “ said a boy from Bangladesh named Risalat Khan, who had noticed our Sierra watersheds from the plane. “We must cut through the mountain of obstacles. Let’s be the river!”
Or as Harrison Ford less poetically put it: “Let’s turn off our phones and roll up our sleeves and kick this monster’s ass.”
4th California Climate Change Assessment Blues
by Isaac Pearlman
Since California’s last state-led climate change assessment in 2012, the Golden State has experienced a litany of natural disasters. This includes four years of severe drought from 2012 to 2016, an almost non-existent Sierra Nevada snowpack in 2014-2015 costing $2.1 billion in economic losses, widespread Bay Area flooding from winter 2017 storms, and extremely large and damaging wildfires culminating with this year’s Mendocino Complex fire achieving the dubious distinction of the largest in state history. California’s most recent climate assessment, released August 27th, predicts that for the state and the Bay Area, we can expect even more in the future.
The California state government first began assessing climate impacts formally in 2006, due to an executive order by Governor Schwarzenegger. California’s latest iteration and its fourth overall, includes a dizzying array of 44 technical reports; three topical studies on climate justice, tribal and indigenous communities, and the coast and ocean; as well as nine region-specific analyses.
The results are alarming for our state’s future: an estimated four to five feet of sea level rise and loss of one to two-thirds of Southern California beaches by 2100, a 50 percent increase in wildfires over 25,000 acres, stronger and longer heat waves, and infrastructure like airports, wastewater treatment plants, rail and roadways increasingly likely to suffer flooding.
For the first time, California’s latest assessment dives into climate consequences on a regional level. Academics representing nine California regions spearheaded research and summarized the best available science on the variable heat, rain, flooding and extreme event consequences for their areas. For example, the highest local rate of sea level rise in the state is at the rapidly subsiding Humboldt Bay. In San Diego county, the most biodiverse in all of California, preserving its many fragile and endangered species is an urgent priority. Francesca Hopkins from UC Riverside found that the highest rate of childhood asthma in the state isn’t an urban smog-filled city but in the Imperial Valley, where toxic dust from Salton Sea disaster chokes communities – and will only become worse as higher temperatures and less water due to climate change dry and brittle the area.
According to the Bay Area Regional Report, since 1950 the Bay Area has already increased in temperature by 1.7 degrees Fahrenheit and local sea level is eight inches higher than it was one hundred years ago. Future climate will render the Bay Area less suitable for our evergreen redwood and fir forests, and more favorable for tolerant chaparral shrub land. The region’s seven million people and $750 billion economy (almost one-third of California’s total) is predicted to be increasingly beset by more “boom and bust” irregular wet and very dry years, punctuated by increasingly intense and damaging storms.
Unsurprisingly, according to the report the Bay Area’s intensifying housing and equity problems have a multiplier affect with climate change. As Bay Area housing spreads further north, south, and inland the result is higher transportation and energy needs for those with the fewest resources available to afford them; and acute disparity in climate vulnerability across Bay Area communities and populations.
“All Californians will likely endure more illness and be at greater risk of early death because of climate change,” bluntly states the statewide summary brochure for California’s climate assessment. “[However] vulnerable populations that already experience the greatest adverse health impacts will be disproportionately affected.”
“We’re much better at being reactive to a disaster than planning ahead,” said UC Berkeley professor and contributing author David Ackerly at a California Adaptation Forum panel in Sacramento on August 27th. “And it is vulnerable communities that suffer from those disasters. How much human suffering has to happen before it triggers the next round of activity?”
The assessment’s data is publicly available online at “Cal-adapt,” where Californians can explore projected impacts for their neighborhoods, towns, and regions.