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Latest Atmospheric methane Stories

Man-made Methane Emissions Traced To Roman Times
2012-10-04 05:52:22

April Flowers for redOrbit.com - Your Universe Online Analysis of the Greenland ice sheet is allowing scientists to trace the emissions of the greenhouse gas methane back thousands of years. A research team, led by the Niels Bohr Institute, has determined how much methane originates from natural sources and how much is due to human activity using special analytical methods. The resulting data can be dated back to Roman times and up to the present. More than half the emissions today are...

Methane Reservoir Beneath Antarctic Ice Sheet
2012-08-30 08:32:12

April Flowers for redOrbit.com - Your Universe Online A recent study of the Antarctic Ice Sheet suggests that it could be a largely overlooked source of the potent greenhouse gas methane. An international team of scientists from the University of Bristol, the University of California, Santa Cruz, the University of Alberta, Edmonton, and the University of Utrecht, demonstrate that old organic matter in sedimentary basins located beneath the Antarctic Ice Sheet may have been converted to...

Mystery About Sky-high Methane Closer To Being Solved
2012-08-22 14:31:40

Commercial natural gas was likely major factor in late-20th century stabilization Increased capture of natural gas from oil fields probably accounts for up to 70 percent of the dramatic leveling off seen in atmospheric methane at the end of the 20th century, according to new UC Irvine research being published Thursday, Aug. 23, in the journal Nature. “We can now say with confidence that, based on our data, the trend is largely a result of changes in fossil fuel use,” said...

Diseased Trees Are A New Source Of Climate Gas
2012-08-08 10:03:49

April Flowers for redOrbit.com - Your Universe Online A new study from the Yale School of Forestry & Environmental Studies asserts that diseased trees may be a significant new source of methane gas that causes climate change. The study, "Elevated Methane Concentrations in Trees of an Upland Forest," which will be published in Geophysical Research Letters sampled sixty trees at the Yale Myers Forest in northeastern Connecticut. The Yale Myers Forest is 7,480 acres of mixed...

Thawing Arctic Cryosphere Releases Trapped Methane
2012-05-22 09:10:29

Brett Smith for RedOrbit.com The edges of glaciers and Arctic permafrost are where most of the evidence of global warming can be seen, but scientists have recently been traveling to these remote locations for a different reason. Researchers from the University of Alaska at Fairbanks just published a study in the online edition of Nature Geoscience showing that methane trapped under arctic lake ice for millions of years is now being released by the melting ice. The team used both aerial...

Dinosaur Farts May Have Caused Prehistoric Warming
2012-05-07 08:58:22

Brett Smith for RedOrbit.com Dinosaurs may have had a silent, but deadly effect on their climate according to new research by scientists at two UK universities. The study, published in the May 8 edition of Current Biology, compared the digestion-related methane production of Mesozoic-era sauropods to modern cows in an attempt to determine a possible impact as the gas ripped into their prehistoric environment. "A simple mathematical model suggests that the microbes living in sauropod...

2012-01-20 11:08:07

Atmospheric methane (CH4), one of the main greenhouse gases, has increased dramatically worldwide since the pre-industrial era. However, much work is needed to build on intermittent and scattered observations since the 1960s and systematic study since the 1980s. Since 1983, the World Meteorological Organization (WMO) has coordinated global in-situ measurement of methane. Quantification of methane emissions still has large uncertainties, mainly because of undersampling over most regions of the...

Melting Permafrost Amplifies Global Warming Effect
2011-12-01 06:15:21

According to a survey published in the November 30 issue of the journal Nature, melting permafrost in the northern climes is releasing large amounts of methane and carbon, amplifying the global warming effect. When permafrost melts, long dormant microbes come alive and break down the organic matter underneath the layers of frozen soil creating methane. Methane gas has 2.5 times the effect on the atmosphere than carbon dioxide, creating a greater warming effect. The survey, led by Edward...

Image 1 - NOAA Greenhouse Gas Index On The Rise
2011-11-10 10:06:45

[ Watch the Video ] NOAA´s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many greenhouse gases such as carbon dioxide and methane, shows a continued steady upward trend that began with the Industrial Revolution of the 1880s. Started in 2004, the AGGI reached 1.29 in 2010. That means the combined heating effect of long-lived greenhouse gases added to the atmosphere by human activities has increased by 29 percent since 1990, the...

Image 1 - Study Casts Doubts On Natural Gas's Impact On Global Warming
2011-09-09 04:44:02

  Despite the reduced amount of carbon dioxide given off by the burning of natural gas, increasing use of it and decreasing our reliance on coal would do little to slow down global climate change, claims a new study set for publication in the journal Climatic Change Letters. The research, led by Tom Wigley, a senior research associate at the National Center for Atmospheric Research (NCAR), "underscores...the complex and sometimes conflicting ways in which fossil fuel burning...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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