Sentences with phrase «atmospheric methane comes»

An appreciable part of atmospheric methane comes from animal husbandry.

TRUTH: Only a small percentage of atmospheric methane comes from ruminant flatulence; the largest source is the burning of fossil fuels for electricity, heat, and transportation.

Not exact matches

The most detailed measurements currently available of atmospheric methane concentrations come from a sensor aboard the European Space Agency's Sentinel - 5P spacecraft, which launched in October 2017 (ref.

In one scenario, methane's rise may come in part from a drop in hydroxyl, a chemical that acts as an atmospheric detergent; in the other, the gas is emanating from tropical wetlands flooded by heavy rains in recent years.

«We know rather little about how much methane comes from different sources and how these have been changing in response to industrial and agricultural activities or because of climate events like droughts,» says Hinrich Schaefer, an atmospheric scientist at the National Institute of Water and Atmospheric Research (NIWA) in New Zealand, who collaborates with Petrenko.

Insert, 10:08 p.m. Paul Shepson, the study's lead author and an atmospheric chemist at Purdue, said Derry's concern that the team was measuring coalbed methane coming from somewhere other than the gas wells was unfounded.

[Response: If the rise in atmospheric CO2 at the end of the last glacial time had come from organic carbon (trees, peat, dissolved organic matter in the ocean) or especially methane (which is even more isotopically «light» than CO2) it would have left an isotopic signature.

Most of the atmospheric methane does not, however, come from gas wells.