The rise in concentrations of the greenhouse gas methane in the atmosphere has slowed down considerably in recent years, research suggests. Scientists say levels have been stable for about seven years following a steep rise during the last century. 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. ...Link VIA EcologicalInternet.org (Dr. Glen Barry)