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Albert Straus in a field with cows at the Straus Organic Dairy Farm

Straus Dairy: Goal is to become carbon neutral this year

  • Media Coverage

Capital Press

By Julia Hollister

There are a lot of firsts in Albert Straus’ farming history.

Straus Dairy Farm was the first certified organic dairy farm west of the Mississippi River, and Straus Family Creamery was the first certified organic creamery in the United States.

That’s not all. He plans to take another giant step this year.

“I plan to reach my goal of implementing a carbon-neutral dairy farming model on Straus Dairy Farm in the latter part of 2023,” he said. “The farm will be the first dairy to use a specific red seaweed that reduces methane emissions in cow burps.”

By adding about one ounce of the seaweed to each cow’s daily ration, their enteric methane emissions will be reduced by 52% to as much as 90%, according the dairy’s website. He also has a digester that removes methane from manure.

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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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