At more than half of the hundreds of garbage dumps surveyed in the largest assessment yet of such emissions, most of the pollution flowed from leaks, creating concentrated plumes.
The researchers found these super-emitting points can persist for months or even years, and account for almost 90 percent of all measured methane from the landfills.
Sometimes Cusworth conducts aerial surveys of landfills and is relieved to find nothing. And then other times, you know, I'll see a massive billowing plume that's three kilometers long.
Landfills emit methane at levels at least 40 percent higher than previously reported to the Environmental Protection Agency.
#landfill-emissions #methane-pollution #monitoring-protocols #greenhouse-gas-reduction #environmental-impact
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