View Full Version : Melting Permafrost May Exacerbate Methane/CO2 levels
Ahkenaten
21st November 2010, 16:57
http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2010/11/21/international/i054535S92.DTL&tsp=1
GrayWolfBG
6th March 2017, 09:56
GHG's from degrading permafrost has been cited in the recent uptick in yearly CO2 totals as humans pull back from excessive emmisions . In 2013 we saw the results of the study into Siberian stalactites/mites and they found that a rise in global temps of 1.5c above pre-industrial levels consigns permafrost to history.
Last Feb saw global temps break 1.5c for the month.
Studies of off shore permafrost reserves off Siberia have been alarming science since the end of the noughties. In 2012 they found features the named 'chimneys' had grow from a few metres across the year previous to over 1km across. all were seeping CH4. At the end of 2012 Russian ships captains reported 'Boiling Oceans' over the depositis meaning some CH4 was passing through the ocean water without absorption and freely entering the atmosphere.
Science have moved from the 'Safe for thousands of years' stance to 'posses a significant risks of augmenting AGW' over a 20 year study period.
Rocky_Shorz
6th March 2017, 16:27
One of the videos I shared over in weird wild weather was of a scientist that studies ice, from a submarine. So not only surface coverage, but depths of ice.
This year in December, winter hasn't arrived, 67 degree temps...
If the ocean doesn't have ice, it absorbs the sun's energy instead of reflecting it back into space...
He said 2017 might be the first year ever of complete meltdown...
GrayWolfBG
9th March 2017, 11:10
The East Siberian Shelf Sea sits on top of vast permafrost deposits.
When I was taking 'A' levels in 82' my master assured me that those reserves were safe from melt for thousands of years ...
In 2010 we discovered 'chimneys' forming across the shelf out gassing methane. We then heard tales from Russian ships captains of 'Boiling Oceans' over the deposits in September of 2012. When the study teams returned they found those 'Chimneys' had grow to over 1km in diameter and they numbered in their thousands.
What has occurred since 2000 is the appearance of open water across the region each year allowing 'normal Ocean Processes' to take hold. this has meant the loss ,due to wave action, of the halocline which kept the deposits cold.
Since then we have witnessed their land equivalent , in Yamal, beginning to do similar forming the giant sink holes as the 'burp' out the methane inside?
The loss of sea ice does not need to be complete to allow 'normal Ocean processes' to set up across the Arctic basin. As we saw last year a well broken , dispersed, pack allows ocean swells/waves to propagate across the whole basin. This mixes out the special, extra thick, Halocline layer that keeps the warmer ocean waters ( from both Atlantic and Pacific) from the surface and makes ice formation easier and more robust. When the Ocean works like the rest of the worlds Oceans then winter ice will alter significantly and a winter like we have just seen will see very little formation of ice below 80N? This will allow winter storms to nibble at the ocean floor across the shallow shelf sea of the East Siberian Seas.
Then we have the land bound permafrost. In 2003 we discovered that a 1.5c rise above pre industrial will cost us all the permafrost ( and CO2/CH4 they hold). In Feb of 2016 the global monthly temp rose to over 1.5c above pre- industrial. This was an El Nino Spike in global temps but since then we have seen an aborted La Nina not impact global temps with only the slight drop over October/November (in the rate of increase in global temps) to mark its appearance. We are now second highest in our monthly temps with another Nino in the forecast. Global temps will not take the 8 years it took to catch the 98' 'Super Nino' temp spike..... more like 3, tops, if without the help of a Nino?
At the same time we are seeing China reduce its coal use , cancel 103 coal fired power stations, and reduce it city pollution. Since China began these reductions we have seen 3 , back to back, record warm years and a flip of the Pacific's Inter decadal Oscillation to positive and the Pacific Decadal Oscillation to positive..... has the dimming of the regions, most blighted by China's pollution, now begun 'brightening' and so warming the surface more fiercely?
So 1.5c above pre-industrial, so we are told, will cost us our permafrost and the Arctic Sea ice. Well the 0.3c needed to do that is already in the system and more warming in the pipeline ( we are still raising CO2 at above the B.A.U. levels even though humanity is cutting its outputs due to 'sink' failures no longer taking up the CO2).
In the past we see rapid ( decadal) swings in climate. These 'rapid climate shifts' are what I believe us to be looking at now ( since December 27th 2015) and our food producing areas will be impacted. Badly impact two of the 5 major grain producing areas and you lose all emergency aid ( as we saw in 2010?) 3 and we are in global food shortages. See all 5 impacted and we are done.
GrayWolfBG
22nd March 2017, 11:00
http://siberiantimes.com/science/casestudy/news/n0905-7000-underground-gas-bubbles-poised-to-explode-in-arctic/
Well after the studies off the coast there ( in the east Siberian Sea) and the reports of mysterious craters on land we should not be surprised that these studies have shown what is now occurring?
If Siberia sees another summer of record temps and wildfires then we will see the first of the 'carbon burps' that the permafrost holds. This is really a 'game over' event with so much more carbon than our industrialisation has placed into the system primed and ready to flood the Atmosphere.
And why are we not seeing these images in mainstream media or new programmes?
GrayWolfBG
8th July 2017, 08:20
Siberian times have reported the explosion of two of those newly formed hummocks. Locals talk of a pillar of fire lasting several minutes and the explosion was widely heard. The sensors that were installed last summer logged the blasts but now efforts are underway to check the other 700 hummocks as temps now peak.
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