This Week in Dairy: Dr. Frank Mitloehner from UC Davis on Myths of Livestock Impact in Greenhouse Gases

Joel Hastings

Dr. Frank Mitloehner dispels myths of livestock impact on methane and air pollution.

Joel Hastings of DairyBusiness interviews Dr. Frank Mitloehner from UC Davis, who gave a feature presentation at the California Dairy Sustainability Summit on Nov. 27 in Sacramento, California. He debunked four myths that those advocating "plant-based diets" use to claim that livestock agriculture is a major source of greenhouse gases. In this conversation, he hits the highlights of his research.

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  1. I am working on a Master’s thesis, barn design, that conditions the air within the barn, vs conventional air conditioning. Our system compresses the air within the barn to 3 times that of the boiling point of CO 2 (75.5 psi), cools it, releasing it into a series of water-slush filled tanks, capturing the CO 2, then releases the COLD air back into the barn, but not before a portion of the N2 is filtered out, maintaining an OSHA approved 22.5% Oxygen level. Then the Methane Oxygen barn air is used to help fuel the barns biogas generator. All powered by a co-generating windmill that can both compress air and generate electricity. A further option added to the design might be to have a bio char producing gasifier added as an additional fuel source.

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