Data suggest that the United States may be responsible for half of global methane increase in the past decade.
methane
After a Century, Restored Wetlands May Still Be a Carbon Source
Methane emissions can drastically lower, or even reverse, the benefits of carbon sequestration in restored wetlands, according to new measurements from the Sacramento–San Joaquin Delta.
Tracking Carbon in the Alaskan Arctic
Researchers trace carbon through Arctic soils and find an unlikely source of methane and surprisingly low methane oxidation in watersheds throughout northern Alaska.
High Methane Emissions Detected During Subarctic Lake Melt
A spike detected in surface methane released from a seasonally ice-covered lake in northern Sweden coincides with the spring thaw and lake overturn.
Microbes Make a Quick Meal of Methane in a Submarine Canyon
Scientists track the fate of methane released by hydrates in a major canyon off the U.S. East Coast.
Greenhouse Gas Patterns Offer Promise, Puzzlement
Emissions growth of carbon dioxide has suddenly slowed, but atmospheric methane concentrations continue to soar after a long hiatus. Both trends have a bearing on climate pacts sought this week.
Active Mud Volcano Field Discovered off Southeast Alaska
A cruise to study landslide potential along an earthquake-prone fault found a surprising methane plume.
Rising Temperatures Release Methane Locked in the Seabed
New research shows that when ice in the seafloor melts, single-cell organisms metabolize the methane released, preventing the greenhouse gas from reaching the atmosphere.
When the Sun Goes Quiet, Titan Gets Gassy
Observations from NASA's Cassini probe show that the level of methane in Titan's atmosphere depends on the Sun's 11-year cycle of magnetic activity.
Jewell Presents Interior Department's Energy "Reform Agenda"
Interior Secretary Jewell says that the agency's agenda includes safe and responsible energy development, good government, and encouraging innovation.