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Tag: microbes
Study shows sunlight, not microbes dominate CO2 production in Arctic
2014-08-26 00:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: Just how much Arctic permafrost will thaw in the future and how fast heat-trapping carbon dioxide will be released from those warming soils is a topic of lively debate among climate scientists. To answer those questions, scientists need to understand the mechanisms that control the conversion of organic soil carbon into carbon dioxide gas. Until now, researchers believed that bacteria were largely responsible.
Tags: study
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arctic
Sunlight, Not Microbes, Control Carbon Release in the Arctic
2014-08-22 20:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Nature World: A vast amount of carbon stored in Arctic permafrost is being converted into carbon dioxide (CO2) once it enters freshwater systems - a process that is worrying experts tracking climate change. This process was long thought to be enabled by microbial activity, but a new study identifies that sunlight itself might be the true culprit. Traditional permafrost is frozen water trapped in soil in a region that never warms enough to the point that the ground will thaw. However, in the wake of a changing...
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control
release
carbon
Microbes thrive below Antarctic ice
2014-08-21 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Christian Science Monitor: Researchers have uncovered a thriving community of microbes in a lake some 2,600 feet below the surface of the West Antarctic Ice Sheet, the first direct evidence of life in such lakes and the first window on the ecosystem the microbes occupy. Genetic evidence extracted from samples of lake water indicates that the lake teems with a wide variety of microbes that make up a complete food chain, with those at the bottom drawing their energy from chemicals in rocks and sediment in the lake bed. In...
Tags: ice
thrive
antarctic
microbes
Rain And Climate Influenced By Dust And The Microbes That Ride On It
2014-08-14 19:18:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbit: Dusty air blowing across the Pacific from Asia and Africa plays a critical role in precipitation patterns throughout the drought-stricken western US. Today, a scientist will present new research suggesting that the exact chemical make-up of that dust, including microbes found in it, is the key to how much rain and snow falls from clouds throughout the region. This information could help better predict rain events, as well as explain how air pollution from a variety of sources influences regional...
Livestock gut microbes contributing to greenhouse gas emissions
2014-06-18 00:00:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: One-fifth of methane emissions has been attributed by researchers to livestock such as cattle, sheep and other ruminants, but the amount of methane produced varies substantially among animals in the same species. Researchers aimed to explore role the microbes living in the rumen play in this process. "Increased to levels unprecedented" is how the Intergovernmental Panel on Climate Change (IPCC) described the rise of carbon dioxide, methane and nitrous oxide emissions in their report on the physical...
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gut
contributing
emissions