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Originally posted by palg1
Originally posted by DutchBigBoy
Originally posted by nocents
OK correct me if I am wrong.
The premiss of the article is that the melting ice is causing the gas to be released. Yet the article also states that the methane has been leaking for 10,000 years. If the methane has not escaped at the same rate as it is leaked their must be one huge methane bubble under the ice. And this scientist is walking around Siberia with a lighter. This could make Tangusta look like 4th of July celebration.
You aren't wrong it has been leaking for thousands of years but the last 30 years it is accelerating, that is what they are troubled about.
Since it has been leaking for 10,000 years, then it has been warming the planet since the last ice age. Stands to reason that it would eventually reach a tipping point where the warmer planet would cause an increase in the thawing of the tundra. Therefore the leaking methane from the frozen tundra is to blame for climate change, not man. That makes more sense to me now.edit on 7-12-2010 by palg1 because: (no reason given)
You aren't wrong it has been leaking for thousands of years but the last 30 years it is accelerating, that is what they are troubled about.
Pacific Decadal Oscillation (PDO)
It is only in recent years that scientists are starting to recognize the influence of atmospheric and oceanic cycles in influencing climate...
A 2008 study – “Oceanic Influences on Recent Continental Warming”, by Compo, G.P., and P.D. Sardeshmukh, (Climate Diagnostics Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado, and Physical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration), Climate Dynamics, 2008)
[www.cdc.noaa.gov...] states: “Evidence is presented that the recent worldwide land warming has occurred largely in response to a worldwide warming of the oceans rather than as a direct response to increasing greenhouse gases (GHGs) over land.
Solar energy reached a summer maximum (9% higher than at present) ca 11 ka ago and has been decreasing since then, primarily in response to the precession of the equinoxes.
The extra energy elevated early Holocene summer temperatures throughout the Arctic 1-3° C above 20th century averages, enough to completely melt many small glaciers throughout the Arctic, although the Greenland Ice Sheet was only slightly smaller than at present...
As summer solar energy decreased in the second half of the Holocene, glaciers reestablished or advanced, sea ice expanded, and the flow of warm Atlantic water into the Arctic Ocean diminished. Late Holocene cooling reached its nadir during the Little Ice Age (about 1250-1850 AD), when sun-blocking volcanic eruptions and perhaps other causes added to the orbital cooling, allowing most Arctic glaciers to reach their maximum Holocene extent..."
Originally posted by Mez353
Originally posted by palg1
Originally posted by DutchBigBoy
Originally posted by nocents
OK correct me if I am wrong.
The premiss of the article is that the melting ice is causing the gas to be released. Yet the article also states that the methane has been leaking for 10,000 years. If the methane has not escaped at the same rate as it is leaked their must be one huge methane bubble under the ice. And this scientist is walking around Siberia with a lighter. This could make Tangusta look like 4th of July celebration.
You aren't wrong it has been leaking for thousands of years but the last 30 years it is accelerating, that is what they are troubled about.
Since it has been leaking for 10,000 years, then it has been warming the planet since the last ice age. Stands to reason that it would eventually reach a tipping point where the warmer planet would cause an increase in the thawing of the tundra. Therefore the leaking methane from the frozen tundra is to blame for climate change, not man. That makes more sense to me now.edit on 7-12-2010 by palg1 because: (no reason given)
Great thinking and rationale.
edit on 7/12/2010 by Mez353 because: (no reason given)