This story was originally published in Grist and appears here as part of the Climate Desk collaboration. How scary are cow burps, exactly? Measured by their planet-warming power, methane-filled livestock belches are the equivalent of 850 coal plants burning year-round. But scientists have found that spicing up cattle feed with a little seaweed can dramatically reduce the methane they produce, according to a new study out March 17. The promise that feed additives could make cows more climate-friendly can seem too good to be true, and it often is. Researchers…
