A Canadian government scientist has spearheaded the development of a new, high-tech measuring device combining laser beams, GPS locators and chemical detectors to more accurately gauge the amount of methane released by burping and farting cows -a significant source of the world's greenhouse gases.
A bi-national collaboration with Australian agronomists, the project was led by Sean McGinn, a senior scientist at Agriculture and AgriFood Canada's farm research centre in Lethbridge and is detailed in the latest issue of the Journal of Environmental Quality.
Gas emissions from grazing cattle and sheep are known to be a major driver of planetary climate change. The study estimates that up to 17 per cent of the world's methane output comes from livestock.
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