Photo: Paul Sakuma / Associated Press Photo: Michael Macor / The Chronicle

As San Francisco prepares to host Gov. Jerry Brown’s historic Global Climate Action Summit in September, we, the San Francisco Bay Area mayors of cities impacted by the toxic consequences of fossil fuel production, are standing with elected representatives from frontline communities and throughout California in calling on the governor to phase out fossil fuel production.

Benicia and Richmond both face the toxic consequences of California’s complicity in one of the most toxic, polluting, dangerous industries on Earth and the primary driver of climate change: the oil and gas industry.

Benicia is home to the Valero oil refinery, and our residents are regularly exposed to emissions during standard operations. In May 2017, a power outage sent flames, heavy black smoke and toxic gases spewing into the air for two straight weeks. Among the pollutants were nearly 80,000 pounds of toxic sulfur dioxide — five years’ worth of “normal” emissions — and carbonyl sulfide, a highly toxic and extremely flammable gas. Accidents are only the most visible of the toxic pollution that impacts our public health, day after day. Our asthma rates are three times the state average.

The Texas-based petroleum giant’s Benicia refinery employs 480 people and supplies nearly a quarter of our city’s tax revenue, but at what cost?

When Valero proposed a crude-by-rail project to bring 70,000 barrels of tar sands and Bakken crude oil per day by rail through the Sierra, Sacramento and Davis to Benicia, our residents resisted, and our small, historic town stood up to our biggest employer and taxpayer. After three years of environmental review, national attention and a failed effort by Valero to get the federal government involved, the City Council voted unanimously against it.

Farther south on San Francisco Bay is Richmond, one of the poorest communities in the Bay Area. Our city of largely Hispanic, African American and Asian residents fought against toxic industrial pollution from Chevron’s Richmond refinery that processes 250,000 barrels of crude oil daily. Chevron is our largest employer and taxpayer. Nonetheless, our community has risen up, defeating Chevron-backed candidates in 2014 that outspent us 5 to 1 in our local election, and elected true champions for our community. Richmond forced major environmental conditions on Chevron as it expands the refinery and strengthened our Industrial Safety Ordinance in response to the refinery’s toxic explosion and fire in 2012 that sent 15,000 residents to seek medical treatment.

Toxic pollution isn’t the only threat we face. With 32 miles of shoreline, more than any other city on San Francisco Bay, Richmond is at extreme risk from sea level rise that will soon cost our community far more than we can afford. So, Richmond, home to an oil giant, became the ninth city in less than a year to bring major fossil fuel companies to court over climate change. We filed a lawsuit against 29 oil, gas and coal companies — including Chevron, along with BP and Exxon — to hold them accountable for their role in climate change and its impacts on the community.

The fossil fuel industry’s business plan is destroying not only our health and communities, but also the survival of our species.

Yet, under Gov. Jerry Brown, the state of California has not only tolerated the fossil fuel industry, but expanded it — granting permits for drilling 20,000 new oil wells.

The Bay Area has had enough of this climate hypocrisy. It is wrong to make communities sick. As one of the top oil-producing states, it is time to bring the fossil fuel era to an end.

While our small towns have the courage to stand up to a billion-dollar fossil fuel industry to protect our public health and climate, why hasn’t Brown?

On the toxic front lines of climate change, we stand with 150 local elected officials from a majority of counties in California that are taking bold steps to stop fossil fuels. We all are urging Brown to make a plan to phase out oil and gas production in California, to clean up our cities, towns and agricultural lands, and protect our people.

If our cities can say “no” to expanding fossil fuels, Gov. Brown, you can, too — and we’ll have your back.

Elizabeth Patterson is mayor of Benicia. Melvin Willis is vice mayor of Richmond.