Methane is a short-lived but powerful greenhouse gas; cutting methane emissions can slow near-term warming and improve air quality by reducing harmful ground-level ozone. As ruminants digest feed, they release methane—through burps. In fact, emissions from cattle are the largest source of human...

Source: [Phys.org](https://phys.org/news/2026-08-cow-burps-real-methane-sensor.html)

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