By

Cariad Hayes Thronson
About the author

Cariad Hayes Thronson covers legal and political issues for Estuary News. She has served on the staffs of several national publications, including The American Lawyer. She is a long-time contributor to Estuary News, and some years ago served as its assistant editor. She lives in San Mateo with her husband and two children.

Articles by Cariad Hayes Thronson

More Grants for Real People

Even as “environmental justice” and “community engagement” have long been watchwords of restoration and resilience efforts, economically disadvantaged communities on San Francisco Bay’s shoreline have often felt sidelined by them. But that may be changing: the summer of 2020 saw new initiatives to give communities more power to shape and participate in restoration projects in their own backyards. In July, the San Francisco Bay Restoration Authority kicked off its new Community Grants Program, allocating $200,000 of its $25 million 2020-21...
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The Delta’s Blooming Problem

Bright-green blotches of algae have been popping up all over the Delta since early summer, from Discovery Bay to the Stockton waterfront, befouling the air and poisoning the water with toxins that can sicken or even kill humans and animals. Veteran Delta watchers believe that this year’s harmful algal blooms may be the worst ever, and worry that some features of Governor Gavin Newsom’s recently released Water Resilience Portfolio for California will aggravate the problem. “We don’t have enough data...
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Better scientific preparation could help Delta water and environmental managers respond to droughts more effectively.

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...
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Although the Covid-19 pandemic and attendant economic cataclysm have tripped up some ambitious plans for funding climate resilience in California, other measures to integrate adaptation and planning are still on track.

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...
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Adaptation Complexities Spur Innovation

By Cariad Hayes Thronson 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. At least three to six feet of sea level rise are a virtual certainty by the end of the century. Countywide, a vulnerability assessment...
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Planting for Resilience

By Cariad Hayes Thronson 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. A climate action plan has been in the works since 2011 but has yet to...
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Smack in the middle of the unprecedented disruption of normal life brought on by the Covid-19 crisis comes a new report detailing the challenges sea level rise might bring to the Bay region without proactive planning.

 Released on March 26, Adapting to Rising Tides: Bay Area compares the effects of rising waters on communities, natural lands and critical regional systems. “Shoreline flooding from sea level rise and storm events will impact everyone in the Bay Area because the transportation systems we rely on, schools, childcare, and hospitals we depend on, jobs at which we work, and beautiful natural areas we love are at risk, and interconnected across the Bay,” says Dana Brechwald of the Bay Conservation and...
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Regulatory Teams Coordinate

By Cariad Hayes Thronson In March the San Francisco Estuary Partnership released its Wetlands Regional Monitoring Program Plan, which lays out the science framework for a long-term program to monitor tidal wetlands around the Bay. “The focus of the plan is how we’re going to answer five guiding questions about the status and trends of our tidal wetlands,” says the Partnership’s Heidi Nutters. The framework is only the first phase of what will ultimately be a four-year planning process. Nutters...
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Flows and Ecosystem Function Dominate Delta Plan Amendment

With the Delta lagging behind the Bay on four of the State of the Estuary Report’s five indicators, the last long-range plan for restoring its ecological health abandoned, and the threats from climate change becoming ever more alarming, the need for a new regulatory vision for the region may never have been greater. A pending amendment to the Delta Plan, shared by Ron Melcer at the State of the Estuary Conference as part of a policy update session, is meant...
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State Plan Doubles Down on Alignment

By Cariad Hayes Thronson The California Water Plan Update 2018—released by the Department of Water Resources in July—is meant to guide state policy and investment over the next 50 years to maximize the benefits squeezed out of every drop of the water supply. The timing of Update 2018 is fortuitous. In April, Governor Newsom ordered the California Natural Resources Agency, California Environmental Protection Agency, and California Department of Food and Agriculture to develop a portfolio of water resilience strategies. “There’s...
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Bay-Delta Leaders Comment on Climate

Edited by Cariad Hayes Thronson These magazine pages share the opinions of various new leaders in the Estuary management world about climate change. “The biggest challenge is that it is difficult for people, including decision-makers, to plan for uncertain, long-range challenges. We know that in order to make the greatest impact we need to start now,” says BCDC’s Dana Brechwald. Climate change is forcing some regulatory agencies, including the State Water Resources Control Board and BCDC, to fundamentally shift the...
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Permitting Opens a Fast Lane

By Cariad Hayes Thronson “Innovating in government is easiest done when there are incentives,” says Brad McCrea of the Bay Conservation and Development Commission. The Bay Restoration Regulatory Integration Team, which begins accepting applications this fall, has been designed to accelerate the pace at which large-scale projects find their path to funding through the daunting thicket of permit applications and regulatory approvals. The Team consists of one staff member from each of the six state and federal regulatory agencies involved...
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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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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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Purse Opens for PCA Projects

Marsh restoration, Bay and Ridge Trail extensions, and urban park upgrades are among the types of projects eligible to receive funding through the 2019 Bay Area Priority Conservation Area (PCA) One Bay Area Grant Program. By March, aided by new mapping tools that can pinpoint regional landscape characteristics and needs, more than 36 cities, counties, agencies and non-profits had submitted letters of interest to the program, outlining a variety of projects that benefit one or more of the Bay Area’s...
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Choppy Waters for Flow Rules

By Cariad Hayes Thronson The winter kicked off with the State Water Resources Control Board’s December vote to adopt increased flow objectives for the southern Delta. The vote provoked an immediate volley of lawsuits, both from water users and from environmental organizations. The water users claim that the required flows would be an unconstitutional waste, while the environmental groups argue the plan doesn’t go far enough to restore endangered fish populations. Overshadowing the discussions are the vigorous efforts by the...
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State Could Step Up

Despite an official California policy in place since 1992 that calls for “no net loss” of wetlands, the lack of a specific wetlands definition has led to the loss of many thousands of acres of ecologically important lands. That could change soon, thanks to an update from the State Water Resources Control Board expected out soon after more than a decade of work. California environmentalists are optimistic that the updated policy, titled “State Wetland Definition and Procedures for Discharges of...
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Just months after becoming the first project awarded Measure AA funding, the first phase of tidal breaching at the Montezuma Wetlands restoration project will be two-thirds complete by the end of November.

“We are on track to complete the levees and transition zones next year so we can breach into the slough and restore the area to tidal action,” says Jim Levine, managing partner of Montezuma Wetlands LLC, which owns the property. The breach of the first major restoration area is planned for December 2019. This phase of the multi-phase project will restore 600 acres of previously subsided shoreline on the eastern edge of Suisun Bay to tidal, seasonal and some sub-tidal habitat....
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In response to the critical threat that changing ocean chemistry poses to both ecosystems and economies, the California Ocean Protection Council adopted the state’s first Ocean Acidification Action Plan on October 25.

The plan addresses ocean acidification—like climate change, a consequence of rising atmospheric CO2 levels—in the context of other threats such as polluted runoff, warming temperatures, and rising seas. It promotes local solutions that are likely to provide multiple benefits—from improving water quality to promoting healthy seagrass, marsh, and kelp forest habitats. The plan, one of the first released by a member of the International Alliance to Combat Ocean Acidification, identifies six key strategies, and outlines five-year goals and actions for...
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Recent Milestones for the Twin Tunnels and WaterFix

Spring and summer 2018 saw frenzied activity around California WaterFix, the latest iteration of a decades-long, on-again-of-again effort to convey fresh water from the Sacramento River to the South Delta while bypassing the Delta itself. Governor Jerry Brown has made WaterFix a top priority, but the project – including twin tunnels comprising the largest infrastructure project in state history – still faces a raft of uncertainties.
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