Scientists say levels have been stable for about seven years following a steep rise during the last century.More info at BBC News.
Researchers believe the slowdown may be due to measures aimed at reducing the release of methane from gas pipelines, paddy fields and landfill sites.
The findings are published in the journal Geophysical Research Letters.
The study also found that major forest fires, such as occurred in Indonesia in 1997 and 1998, produce significant quantities of methane.
Methane concentration rise in atmosphere slowing down
Posted on Sunday, Nov 26 2006 @ 09:23 CET by Thomas De Maesschalck
Scientists report the rise of methane, a strong greenhouse gas, in the atmosphere has slown down considerable in recent years.