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Photos by Scott Strazzante / The Chronicle

How Bay Area farms could give Biden a blueprint for fighting climate change

  • Media Coverage

San Francisco Chronicle

Photos by Scott Strazzante / The Chronicle

By Danielle Echeverria

In one of his first acts in office, President Biden said he wants farmers and ranchers to tell him how to fight climate change.

If he wants to hear from agricultural businesses already on the front lines of combating global warming, the Bay Area might be a good place to start.

On Albert Straus’ organic dairy farm in Marin County, an electric truck powered by cow manure feeds his 280 cows. Since 2004, he’s been using a methane digester, which captures methane from manure and converts it into enough electricity to power the whole farm. Judith Redmond of Full Belly Farms in Capay Valley (Yolo County), which sells at farmers’ markets all over the Bay Area, works with universities to implement sustainable practices such as reduced tillage.

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A person wearing a hat, gloves, and work clothes stands at an outdoor research station at Correia Family Dairy, pouring a reddish liquid into a large funnel-shaped container connected to hoses and pipes. Several plastic sample bottles sit on the ground nearby, and shade cloths overhead provide cover. The setup includes pumps, tubing, and monitoring devices, suggesting a water, soil, or nutrient treatment experiment.

These very hungry microbes devour a powerful pollutant

PETALUMA, Calif. — The cows had to be deterred from messing with the
experiment.

Researchers from a Bay Area technology company had come to the sprawling
dairy farm north of San Francisco to test an emerging solution to planetwarming emissions: microscopic pink organisms that eat methane, a potent
greenhouse gas.

Kenny Correia, 35, of Correia Family Dairy, watched the team from Windfall Bio
working near the lagoons used to store manure from the farm’s several hundred
cows. The researchers erected a futuristic system of vats, pipes, tubes and shiny
metal supports. Then, when everything was assembled, they poured pink liquid
into one of the vats. “They were looking like mad scientists out there,” Correia
recounted.

He acknowledged initially thinking it was a “crazy idea” to integrate an outdoor
laboratory into a working farm. There was the potential for the cows to “be all
over it — licking it, pulling out wires and scratching on it,” he said.
But livestock farms are a significant source of methane emissions, and Windfall
wanted to see how much the microbes could help.

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December 8, 2025
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