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Last updated on April 19, 2014 at 5:20 EDT

Latest Frank Keppler Stories

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2009-01-14 15:16:37

New research is challenging the recent finding that plants could be a major source of the atmosphere's methane levels. A study from 2006 suggested plants could account for almost half of the global production of the greenhouse gas, yet a UK-based team has found that under normal conditions, plants just convey methane from the soil to the air without actually producing it. The research suggests identifying sources of methane is key for climate control, as the gas is about 20 times more potent...

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...