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Latest Atmospheric methane Stories

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2008-12-04 11:25:00

On Wednesday, researchers said the arctic tundra emits the same amount of methane in winter as in the warmer months, a surprising finding that bolsters understanding of how greenhouse gases interact with nature.Torben Christensen, a biogeochemist at Lund University in Sweden, said scientists have long known that wetlands produce large amounts of methane and had thought it unlikely that greenhouse gases escaped from beneath frozen tundra."Mother Nature is showing us something that is really...

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2008-10-29 11:15:00

The amount of methane in Earth's atmosphere shot up in 2007, bringing to an end approximately a decade in which atmospheric levels of the potent greenhouse gas were essentially stable. The new study is based on data from a worldwide NASA-funded measurement network. Methane levels in the atmosphere have more than tripled since pre-industrial times, accounting for around one-fifth of the human contribution to greenhouse gas-driven global warming. Until recently, the leveling off of methane...

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2008-10-25 13:40:00

Carbon dioxide is only one of the greenhouse gases that make scientists stay up at night. Methane and nitrogen trifluoride are increasing which makes scientists worry about increasing global warming.  Methane is the greatest threat. It represents about one-third that of carbon dioxide produced by the burning of coal, oil and other fossil fuels.  As a greenhouse gas, methane is second to carbon dioxide.  Decaying plant material, land fills, natural gas, coal mining and animal...

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2008-05-21 12:18:06

Carbon buried in the Earth could ultimately determine the fate of our planet's atmosphere. So concluded a pioneering meeting last week about the Earth's long-neglected "deep" carbon cycle. Carbon is locked away down in the Earth's crust: in magma and old carbonate rocks buried by plate tectonics, in fossil fuels like coal and oil, and in ice lattices beneath the ocean bed. It has long been assumed that this carbon was largely cut off from the surface, and could safely be ignored when...

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2008-04-25 00:15:00

Researchers from the National Oceanographic and Atmospheric Administration Earth System Research Laboratory (ESRL) reported new data that shows a higher than usual average increase in carbon dioxide levels over the last 30 years.The recently released report from NOAA scientists is an annual update to the agency's greenhouse gas index, which tracks data from 60 regions around the world. Concentrations may have increased by as much as 0.5% from 2006 to 2007.CO2 levels jumped by 2.4 parts per...

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2008-04-16 13:04:37

New insights into natural changes in atmospheric methane concentrationsIce cores are essential for climate research, because they represent the only archive which allows direct measurements of atmospheric composition and greenhouse gas concentrations in the past. Using novel isotopic studies, scientists from the European Project for Ice Coring In Antarctica (EPICA) were now able to identify the most important processes responsible for changes in natural methane concentrations over the...

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2007-02-20 06:05:00

Saturn's moon Titan is notorious for its shroud of organic haze. Recent experiments suggest that early Earth may have been covered by a similar haze. The discovery could shed light on how life spread around the globe. NASA - Saturn's giant moon Titan is enveloped by a thick layer of organic haze. Although Titan's haze layer is unique in the present-day solar system, a recent experiment by researchers at the University of Colorado at Boulder suggests that, billions of years ago, Earth was also...

2006-06-21 15:02:15

By Jeremy Lovell LONDON (Reuters) - Many countries may be grossly underestimating the quantity of greenhouse gases they emit according to a new method of monitoring output, scientists said on Wednesday. The new "top-down" system measures the actual amount of gases such as carbon dioxide and methane in the atmosphere, compared with the traditional "bottom-up" method which estimates what is likely to be produced on the ground. The findings, still the subject of scientific debate,...

2006-01-24 06:40:00

TOKYO -- Japanese scientists have gone back in time to study the earth's climate by drilling more than 3 kilometres into Antarctica's ice sheet, a researcher said on Tuesday. Yoshiyuki Fujii said the cores are among the oldest samples yet extracted by scientists and hoped bubbles of gas, such as carbon dioxide, trapped in the core samples will offer clues to past patterns of global climate change. They might also further highlight the threat from global warming by giving a million-year-old...

2006-01-11 13:05:00

LONDON -- German scientists have discovered a new source of methane, a greenhouse gas that is second only to carbon dioxide in its impact on climate change. The culprits are plants. They produce about 10 to 30 percent of the annual methane found in the atmosphere, according to researchers at the Max-Planck Institute for Nuclear Physics in Heidelberg, Germany. The scientists measured the amount of methane released by plants in controlled experiments. They found it increases with rising...