Articles by

Cariad Hayes Thronson

The number of Chinook salmon returning to Central Valley rivers is near record lows as a result of water management decisions made during the recent drought.

Returns of endangered winter-run Chinook salmon this year will be the second lowest this century—according to the Bay Institute’s Jonathan Rosenfield, the final 2017 estimate is likely to be less than 1,000 fish total, of which more than 80% were hatchery-spawned. Returning fish represent the survivors of the 2014 incubation period, when the US Bureau of Reclamation did not provide adequate cold water, and poor juvenile outmigration conditions during winter-spring 2015 resulting from reduced Delta inflow and outflow standards. Despite all this,...
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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...
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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...
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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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Going Local Buys Future for Bayshore

DOWNLOAD the March 2017 Issue PDF Going Local Buys Future for Bayshore Steps to a Regional Parcel Tax for Restoration By Cariad Hayes Thronson 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 was the result of a carefully planned and meticulously executed effort over more than a dozen years...
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Wetland Protections in Transition

DOWNLOAD the September 2016 Issue PDF Wetland Protections in Transition By Cariad Hayes Thronson Environmentalists are heading warily into the fall following two regulatory developments that they fear may cramp efforts to protect California’s wetlands. In June the State Water Resources Control Board released a draft document overhauling wetlands protection procedures but leaving open the question of exactly which wetlands are eligible for protection. In the same month the U.S. Supreme Court ruled that landowners may mount court challenges to U.S. EPA...
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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.

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