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PBS News Hour
How scientists are reducing methane from cow burps
Livestock production—primarily cows—produce 14.5 percent of global greenhouse gas emissions. The majority of that is in the form of methane, a potent greenhouse gas that is a natural byproduct of how some livestock process food. But as Christopher Booker reports, scientists are hoping that small tweaks in what cows eat can dramatically reduce a big source of climate emissions.
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