Cutting Down on Cow Burps to Ease Climate Change
Livestock has directly caused about a quarter of industrial-age warming. Scientists in New Zealand are working on an anti-burp vaccine for those methane-emitting cows.
In a cream-colored metal barn two hours north of Wellington, New Zealand, a black-and-white dairy cow stands in what looks like an oversize fish tank. Through the transparent Plexiglas walls, she can see three other cows in adjacent identical cubicles munching their food in companionable silence. Tubes sprout from the tops of the boxes, exchanging fresh air for the stale stuff inside. The cows, their owners say, could help slow climate change.
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