Showing posts with label IPCC. Show all posts
Showing posts with label IPCC. Show all posts

Sunday, December 8, 2013

CLIMATE REPORT'S HUGE OMISSION OBSCURES FULL DANGER

by Gary Houser

CLIMATE REPORT'S HUGE OMISSION OBSCURES FULL DANGER:
Grassroots Must Insist IPCC Include Massive Permafrost Carbon




"Across two decades and thousands of pages of reports, the world's most authoritative voice on climate science has consistently understated the rate and intensity of climate change and the danger those impacts represent, say a growing number of studies .......   The speed and ferocity of climate change are outpacing IPCC projections on many fronts, including CO2 emissions, temperature rise, continental ice-sheet melt, Arctic sea ice decline, and sea level rise. 
The IPCC’s overly conservative reading of the science ..... means governments and the public could be blindsided by the rapid onset of the flooding, extreme storms, drought, and other impacts associated with catastrophic global warming."
                              
—  Scientific American, "Climate Science Predictions Prove Too Conservative", Dec.6, 2012    [1]
The primary scientific report used by governments of the world to guide their policies on climate has failed to convey the full danger being created by release of greenhouse gases into the atmosphere. By focusing on human-generated carbon, the Intergovernmental Panel on Climate Change (IPCC) has ignored an even more threatening process now being triggered by those emissions. Rapid warming in the Arctic - where temperatures are rising twice as fast as the global rate - is thawing an incomprehensibly vast stockpile of nature's own carbon which has been trapped in ice for millenia. This threat is described in a new mini-documentary (entitled "Last Hours"  [2] )the importance of which has been highlighted by leaders on the climate issue such as Al Gore.   [3]  

The scale of this threat is mind-boggling. There is over three times more heating power stored in this "permafrost" than that which has been caused by human greenhouse gas emissions since the beginning of the industrial age - and this refers only to that located on land (as opposed to the coastal seabeds). [4]  This stockpile includes super greenhouse gas methane, acknowledged even by the IPCC itself to be a stunning 86 times more potent than carbon dioxide as a warming agent over 20 years (with climate-carbon feedbacks). [5]   
Despite a formal appeal by scientists specializing in permafrost study that IPCC issue a special assessment drawing attention to this tremendous danger  [6], the recently released report neglected to do so. The French news agency Agence France-Presse reported that due to bureaucratic delays and a log-jam in the processing of cutting edge data, 
"the cut-off date meant the authors were unable to evaluate recent, but very worrying, studies that say methane trapped in ice-bound coasts in northeast Siberia is being released as seas warm, thus putting the greenhouse effect into higher gear."   [7]

This massive failure by IPCC means that governments world-wide have not been given adequate warning about how preciously little time may be left to prevent the crossing of a tipping point leading to unstoppable global catastrophe. By not addressing the unique consequences brought on by accelerated Arctic warming, the IPCC is in fact skewing the picture that needs to be presented.
"Arctic and alpine air temperatures are expected to increase at roughly twice the global rate .... A global temperature increase of 3 degrees Celsius means a 6 degrees Celsius increase in the Arctic, resulting in an irreversible loss of anywhere between 30 to 85 percent of near-surface permafrost."   [8]
Even worse, more cutting edge science (also not included in the IPCC report) reveals additional unsettling developments. Exposure to sunlight appears to speed up the rate of permafrost thaw: "...sunlight increases bacterial conversion of exposed soil carbon into carbon dioxide gas by at least 40 percent compared to carbon that remains in the dark." [9]   This thaw on land is being matched in the shallow coastal seabeds. Natalia Shakhova - who has helped lead numerous fact-finding missions along the coast of Siberia - reports that releases there are "now on par with the methane being released from the arctic tundra."  [10]  She also warns that these releases can be larger and more abrupt than those resulting from decomposition on land.

As previously frozen methane vents to the atmosphere, the warming it causes can thaw and release even more. This "feedback" is capable of escalating into a "runaway" chain reaction that humanity would be helpless to stop. This is the same methane that some scientists point to as a major factor in the most sweeping mass extinctions in earth's history - the PETM and the end-Permian, the latter of which decimated  90 percent of all life forms.   Whether this association can be absolutely proven or not (the scientific basis for its connection to the Permian is explored in the BBC documentary "The Day Earth Nearly Died"  [11] )no one can credibly deny the immense power of this greenhouse gas. 

By omitting this crucial information, policymakers are being dangerously lulled into believing there is more time to act - and less urgency - than what is in fact the case. At precisely the moment when the world needs the most unambiguous and emphatic warning from the scientific community - a moment which may not afford humanity any second chance to recover and correct course - it is nowhere to be found.  


Methane plumes rising from the seafloor
Over the years, the IPCC has been wrong numerous times in its projections. According to Scientific American:
"In the 2007 report, the IPCC concluded the Arctic would not lose its summer ice before 2070 at the earliest. But the ice pack has shrunk far faster than any scenario scientists felt policymakers should consider; now researchers say the region could see ice-free summers within 20 years."  [12]  
As the opening quote states, this pattern has persisted regarding several aspects of the issue. Given this history, it is not surprising the current IPCC report is again "behind the times" on the very day it is published.  In the short time following its release, a large number of experts on sea level rise are already saying that the IPCC projections are too cautious and conservative.  [13] 

Originally created with a mission to provide government bodies with un-biased scientific facts on climate disruption in order to inform the process of policymaking, the IPCC process has become seriously impaired by a combination of internal problems and outside pressure. The result has been the production of reports that not only fail to keep up with the cutting edge of the science itself but are also tainted by a bias toward overly conservative assessments. 

The same key article in Scientific American describes the internal logjam: 
"Such assessments typically take five to seven years to complete in a slow, bureaucratic process: ......... a summary for policymakers, condensing the science even further, is written and subjected to a painstaking, line-by-line revision by representatives from more than 100 world governments – all of whom must approve the final summary document."   [14]  
Materials from scientists are only accepted for consideration after they have been peer-reviewed and published in a scientific journal. This process in itself can take up to three years. Then another requirement is that such materials cannot be submitted beyond an early cut-off date. The goal of instituting an orderly process is laudable, but the severe problem is that the pace of climate disruption is most assuredly accelerating. If vital information at the cutting edge of these frightening changes cannot make it through these hurdles in time, there is a huge gap of five or six years before it can be integrated into the next report.  

 A key example would be the definitive paper documenting the land-based permafrost feedbacks which asks IPCC to issue a special assessment. Not only was this request ignored, but this documentation was not even considered as it was published after the cut-off date. 

The current IPCC report is quite intimidating at over 2000 pages long. A solution to both problems of timeliness and excessive length is to make the IPCC process more nimble by tackling the various key components of climate disruption individually rather than combining them all into one ponderous document. An example would be a report strictly limited to Arctic issues. As the most rapidly warming region on earth - with profound impact on the global climate - it is entirely deserving of special attention.

The second major problem is that when the IPCC was first set up, a provision was inserted which provides government entities the so-called "right" to review and approve the official Summary for Policymakers - the most important section. As the incredibly wealthy fossil fuel lobby holds great power over many governments, this provision provides an opening to pressure those governments into weakening the language.  As such power was actively used to weaken segments of the last Summary in 2007, [15]  it cannot be ruled out that such was used again. Scientific research should not be censored by political entities, a point made eloquently by British expert on feedback dynamics David Wasdell:
"What comes out is that which is 'acceptable' ...... from science that is about six years out of date, and that becomes the basis for negotiation and decision-making. It is grossly inappropriate....... There are many pressures ..... not least the enormous profits that continue to be made from fossil fuels." [16]  
This provision should be put up for debate and stricken.    

fish skeleton on parched soil, credit: Will Sherman
There is a corrective action which can be taken. Precedent already exists for the IPCC issuing a "Special Report" on aspects of the issue it considers worthy of special attention. A recent example is one on the increasing frequency of extreme weather events. There is a powerful case behind the need to release a Special Report on the threat from permafrost thaw in the Arctic. But an institution this size does not move unless there is a strong and coordinated campaign aimed at raising the issue and applying some "push". All the grassroots environmental groups that have led the climate movement are now called to recognize the dire need to integrate this frightening issue into the framework of all thinking and strategizing. If this is not done, and governments around the world continue to ignore it, there is a high likelihood that all other climate campaigns will fail. 

Keystone XL Pipeline protest - photo taken Feb 13, 2013 - from: flickr.com/photos/tarsandsaction/ 
The valiant effort to oppose the tar sands pipeline must be continued. But this movement must recognize that the climate threats are not presenting themselves in single file - one at a time. Several dangers are simultaneously bearing down on humanity. The laws of physics driving these threats will not pause for political stagnation. If the governments of the world fail to see the sleeping giant awakening in the Arctic and adjust their collective sense of urgency accordingly, then it appears our fate is sealed. The laws of physics will run their course. We owe it to those generations that would inherit a devastated planet to do better than that.      

The prospect of humanity being blindsided by a tremendous - and perhaps even fatal - blow is unthinkable. There is no "Planet B" to turn to if the conditions necessary to support life on our present planet are wiped out. Our society places great trust in the scientific community. Faced by any threat of this magnitude, our assumption is that our scientists will fulfill their moral obligation, act on the precautionary principle, and give us ample warning. In this case, that trust is being violated. It is therefore up to concerned citizens everywhere to speak out, hold them accountable,  and insist that governments receive the warning that is needed. This dangerous and potentially suicidal omission must not be allowed to stand.  

Who stands up for the children? - screenshot from children against climate change protest video
"The eyes of the future are looking back at us and they are praying for us to see beyond our own time. They are kneeling with hands clasped that we might act with restraint, that we might leave room for the life that is destined to come."  — Terry Tempest Williams [17]


Gary Houser is a public interest writer and documentary producer focusing on climate issues and the "sleeping giant" of Arctic methane in particular, and based in Ohio in the U.S.  He is seeking to network with others with similar concerns re: permafrost thaw who work in the U.S. context. Current projects are:  persuading major enviro / climate groups to integrate Arctic permafrost thaw as a high priority issue into their campaigns, a specific grassroots campaign to pressure IPCC toward a Special Report, public hearing on Arctic issues in the U.S. Senate, production and broadcast of Arctic permafrost thaw documentary on one of the national TV networks in the U.S.   He can be contacted at:  garyhouser4@gmail.com   


SOURCE LINKS:  

  1. http://www.scientificamerican.com/article.cfm?id=climate-science-predictions-prove-too-conservative
  2. www.lasthours.org
  3. Press release: Last Hours Film Raises Issue Of Global-Warming-Induced Extinction ...
  4. Is Arctic Permafrost the "Sleeping Giant" of Climate Change? - NASA ...
  5. New IPCC report released in 2013, at IPCC AR5 WGI Table 8.7
  6. Press Release - National Snow and Ice Data Center (NSDIC)
  7. Compiling latest climate report took 3 years; critics say that's too long ...
  8. NSIDC Press Room: Press Release: UNEP report urges ...
  9. Thawing Permafrost May Be 'Huge Factor' in Global Warming ...
  10. Arctic seafloor methane releases double previous estimates
  11. "The Day Earth Nearly Died" (BBC documentary) : http://youtu.be/4dhNEAu4wDo
  12. http://www.scientificamerican.com/article.cfm?id=climate-science-predictions-prove-too-conservative
  13. Experts say the IPCC underestimated future sea level rise ...
  14. http://www.scientificamerican.com/article.cfm?id=climate-science-predictions-prove-too-conservative
  15. Washington Post: U.S., China Got Climate Warnings Toned Down
  16. Video: Envisionation Interview: David Wasdell On the IPCC & Scientific ...
  17. Quote by Terry Tempest Williams: The eyes of the ... - Goodreads



    Sunday, October 6, 2013

    Just do NOT tell them the monster exists

    The Arctic Methane Monster

    As discussed in a previous post, the IPCC appears to be acting as if there was a carbon budget to divide among countries, whereas in reality there is a huge carbon debt to our children, while the situation could become catastrophic any time soon.

    Indeed, carbon dioxide is not the only greenhouse gas and the Arctic methane monster is threatening to disrupt the cosy lifetyle of those who want to keep selling parts of such non-existing carbon budgets.

    So, who do you think the IPCC has been listening to, to reach a conclusion after six years of analysis? Experts or snake oil sellers? The cartoon may give you a hint, but why don't you make up your own mind by going over the IPCC statements and comments below.

    Abrupt Climate Change

    The IPCC recently issued AR5 documents that included a discussion of Abrupt Climate Change.

    from: IPCC AR5 Working Group 1 Technical Summary (final draft)
    The IPCC gives some examples:


    Yes, methane release from clathrates sounds scary.


    If there is little consensus on the likelihood, then surely some experts do believe it is likely. Yet, the IPCC somehow reaches the following conclusion, and does so with high confidence:


    Unlikely? What was the basis for this IPCC conclusion? 

    This seems like a conclusion that can only have been reached after a robust analysis of all the evidence. So, how did the IPCC reach this conclusion, given that it did so with such high confidence?

    Let's have a look. The above conclusion is preceeded by this statement:


    OK, that means clathrates will increasingly become destabilized. The IPCC then adds an argument why this would not result in abrupt climate change this century.


    Sure, but that's just one rather insignificant negative feedback, compared to the many more significant positive feedbacks, such as melting causing isostatic rebound that can contribute to the occurrence of earthquakes and landslides, in turn triggering methane release. Yet, without even mentioning these positive feedbacks, the paragraph then jumps to the following conclusion:


    If these initial estimates are not insignificant and if it's all rather difficult to formally assess, how then is it possible that the IPCC reached its end-conclusion with such high confidence? Moreover, was there any basis for these "initial estimates"? Perhaps there's more elsewhere in the IPCC documents. Here's another paragraph that preceeded the above.


    All this expresses is low confidence in existing modeling and lack of understanding of the various processes. Again, how then is it possible that the IPCC reached its conclusion with such high confidence?

    How much methane is currently released from hydrates?

    On this, the IPCC says:


    OK, so things could become scary. And sure, there are no large abrupt releases taking place now, but that doesn't mean there's not going to be any in future. In case of gradual processes, it makes sense to base projections on historic releases. In case of abrupt releases, however, current releases should not be the basis for reaching a conclusion with high confidence.

    So, was the work of Dr. Natalia Shakhova perhaps used as the basis for these estimates? Read on!

    How much methane is stored under the Arctic Ocean?

    How much methane is present in sediments under the seabed of the Arctic Ocean, in the form of free gas and hydrates? On this, the IPCC says in FAQ6:


    That doesn't seem to reflect the estimates of Dr. Natalia Shakhova. According to older estimates, the total amount of methane in the atmosphere is about 5 Gt. Saying that more than 50 Gt of methane could be stored in hydrates the Arctic seems deceptive and appears to be seriously downplaying a very dangerous situation.

    Natalia Shakhova et al. in 2010 estimated the accumulated potential for the East Siberian Arctic Shelf (ESAS) region alone (image on the right) as follows:
    • organic carbon in permafrost of about 500 Gt
    • about 1000 Gt in hydrate deposits
    • about 700 Gt in free gas beneath the gas hydrate stability zone.
    Back in 2008, Natalia Shakhova et al. considered release of up to 50 Gt of predicted amount of hydrate storage as highly possible for abrupt release at any time. Did the IPCC perhaps misread the figures, mistaking the part of the methane that is ready for abrupt release for the total amount of methane in the Arctic?

    How long could it take for large amounts of methane to reach the atmosphere?

    How long could it take for large amounts to reach the atmosphere? On this, the IPCC says in FAQ6, in the same and the next paragraph:


    Events in which most, if not virtually all methane that escaped from the seabed did enter the atmosphere have been studied in 2002 and published in 2006, as reported at:
    http://www.ia.ucsb.edu/pa/display.aspx?pkey=1482
    and at:
    http://onlinelibrary.wiley.com/doi/10.1029/2005GB002668/abstract

    Below, a screenshot from an interview of John Mason with Natalia Shakhova, published at:
    http://www.skepticalscience.com/arctic-methane-outgassing-e-siberian-shelf-part2.html


    In conclusion, Dr Natalia Shakhova also rejects the idea that methane release from hydrates always takes place gradually, over a long time. Especially in the Arctic, there's a huge danger of abrupt release, given the accelerated warming that takes place in the Arctic, given the huge amounts of methane stored in sediments in the form of free gas and methane, given the presence of a tectonic fault line, etc, etc.

    Once released, methane won't get broken down easily in the Arctic Ocean, as this requires the presence of bacteria that can oxidize the methane, as well as free oxygen in the water. Once depleted, oxygen isn't quickly replenished in the Arctic Ocean. Lack of bacteria and depletion of oxygen in the waters of the Arctic Ocean could prevent oxidation of methane rising up in the waters, as described at:
    http://methane-hydrates.blogspot.com/2012/03/large-areas-of-open-ocean-starved-of.html

    In the Arctic, low temperatures mean there are less bacteria that need more time to break down the methane. In other places, currents may bring bacteria back to the location of the methane plume repeatedly. In the Arctic, many currents are long, so once bacteria have flowed away from the location of the plume, they could be driven out of the Arctic Ocean or may return only after a long time, i.e. too long to survive in Arctic waters which are cold and often ice-covered, so a lot of time little or no sunshine penetrates the waters.

    In the Arctic, the danger is much larger that methane releases will overwhelm the capacity of bacteria to break it down in the water. In case of large abrupt releases in the Arctic, the danger is that much of the methane will reach the atmosphere unaffected and remain there for a long time, due to the Jet Stream and the low levels of hydroxyl in the Arctic atmosphere, as further described at:
    http://methane-hydrates.blogspot.com/2013/04/methane-hydrates.html

    BTW, how did all this methane manage to reach the atmosphere over the Arctic Ocean? 

    Methane levels over the Arcic Ocean appear to be rising, as illustrated by the combination of images below, showing methane levels over five years (2009 on the left, to 2013 on the right), each time for the same period (January 21-31) - images by Dr. Leonid Yurganov.

    [ Click on image to enlarge - from: Dramatic increase in methane in the Arctic in January 2013 ]
    If the IPCC was right, how then was it possible methane levels to rise so sharply and abruptly. How was it possible for large amounts of methane to be present over the deep waters of the Arctic Ocean, as discussed at:
    http://arctic-news.blogspot.com/2013/10/methane-over-deep-waters-of-arctic-ocean.html

    [ How did this methane get there? - click on image to enlarge - see also: Methane over deep waters of Arctic Ocean ]
    There is a wealth of evidence from scientists such as Igor Semiletov and Natalia Shakhova who have - year after year - been taking measurements in the East Siberian Arctic Shelf, complete with first-hand reports that methane plumes have been detected.

    "We've found continuous, powerful and impressive seeping structures more than 1,000 metres in diameter. In a very small area, less than 10,000 square miles, we have counted more than 100 fountains, or torch-like structures, bubbling through the water column and injected directly into the atmosphere from the seabed," Dr Semiletov said, "We carried out checks at about 115 stationary points and discovered methane fields of a fantastic scale - I think on a scale not seen before. Some of the plumes were a kilometre or more wide and the emissions went directly into the atmosphere - the concentration was a hundred times higher than normal."  -  Vast methane 'plumes' seen in Arctic ocean as sea ice retreats, by Steve Connor in The Independent, December 13, 2011.

    The image below shows a cluster of methane plumes, over one km in diameter, that appeared in the Laptev Sea end September 2011. The image is part of a paper on the unfolding "Methane Catastrophe".


    Of course, we all wished that we're wrong about this terrifying Arctic methane threat, but the precautionary principle demands a thorough investigation of observations that appear to be at odds with wishful thinking, especially when the stakes are so high. So, IPCC, where's the evidence?




    Related

    - Arctic Methane Monster
    http://arctic-news.blogspot.com/2013/09/arctic-methane-monster.html

    - Methane over deep waters of Arctic Ocean
    http://arctic-news.blogspot.com/2013/10/methane-over-deep-waters-of-arctic-ocean.html

    - Methane hydrate myths
    http://methane-hydrates.blogspot.com/p/myths.html

    - Methane hydrates
    http://methane-hydrates.blogspot.com/2013/04/methane-hydrates.html

    - Methane release caused by earthquakes
    http://arctic-news.blogspot.com/2013/09/methane-release-caused-by-earthquakes.html

    - Earthquake hits Laptev Sea
    http://arctic-news.blogspot.com/2013/09/earthquake-hits-laptev-sea.html

    - North Hole
    http://arctic-news.blogspot.com/2013/09/north-hole.html

    - Seismic activity, by Malcolm Light and Sam Carana (2011)
    Arctic-news.blogspot.com/p/seismic-activity.html

    - Thermal expansion of the Earth's crust necessitates geoengineering (2011)
    Arctic-news.blogspot.com/p/thermal-expansion.html


    Saturday, October 5, 2013

    Methane over deep waters of Arctic Ocean

    The image below shows a lot of methane over deeper parts of oceans, in particular the Arctic Ocean.

    [ click on image to enlarge ]
    Let's zoom in and take a closer look at what's happening.

    [ click on image to enlarge ]
    As earlier discussed in the post Methane release caused by earthquakes, there has been a lot of seismic activity in the Aleutian Islands region all the way up into Alaska, including an earthquake with a magnitude of 7 on the Richter scale on August 30, 2013, and several more recent earthquakes with a higher magnitude than 6 on the Richter scale.

    An earthquake with a magnitude of 4.6 on the Richter scale hit the Laptev Sea on September 28, 2013. Furthermore, there have been several earthquakes in Siberia, while an earthquake with a magnitude of 6.7 on the Richter scale recently hit the Sea of Okhotsk, which occurred at a depth of 359.3 miles (578.24 km). Earthquakes at such a depth can be felt at great distances from the epicenter and can destabilize methane hydrates.

    The presence of methane over the deeper parts of the Arctic Ocean has been discussed in a number of post at this blog recently (see under related, below). It should serve as a warning to those who believed that all methane escaping from deep-sea hydrates would be oxidized in the water by microbes before entering the atmosphere.

    The IPCC appears to still close its eyes for such scenarios. Look at this screenshot from IPCC AR5 WGI TS.3.7:

    Low release this century? Well, the danger may seem low now in many places, but the situation is already very dangerous in the Arctic, where hydroxyl levels in the atmosphere are very low, where water temperatures can show huge anomalies and where seas can be very shallow and at times become super-saturated with methane, to the extent that oxygen depletion in the water prevents methane oxidation. In the case of large abrupt release, waters will soon become super-saturated with methane locally, especially in the shallow parts of the Arctic Ocean. Furthermore, low sea temperatures and the peculiarities of currents create conditions in the Arctic Ocean that are not beneficial to the kind of growth of microbes that would decompose methane in oceans elsewhere.

    How much methane are we talking about? One look at the top image shows that there's a huge amount of methane over the Arctic Ocean. On October 3, 2013, a peak reading was recorded of 2283 ppb and that wasn't even the highest recent reading, as illustrated by the graph below.


    Where were these large amounts of methane released? The animation below shows methane methane readings of over 1950 ppb on October 3, 2013, on the afternoon only and with readings at only four relatively low altitudes, with methane over the Arctic Ocean dominating the picture.

    Saturday, September 28, 2013

    Arctic Methane Monster

    The Intergovernmental Panel on Climate Change (IPCC) has just released the Summary for Policymakers of Working Group I.

    Sadly, the document contains little or no warning on the looming Arctic Methane Monster.

    The IPCC does warn that people's emissions of carbon dioxide (CO2) must be reduced to avoid dangerous temperature rises.

    The IPCC does add that "accounting for warming effects of increases in non-CO2 greenhouse gases, reductions in aerosols, or the release of greenhouse gases from permafrost will also lower the cumulative CO2 emissions for a specific warming target".

    Yet, the IPCC fails to warn that huge amounts of methane, contained in sediments under the Arctic Ocean, are ready for release any time.

    There are no warnings about high sea surface temperatures in the Arctic Ocean. In August 2013, sea surface temperatures of over 20°C (68°F) were recorded in some areas in the Beauford Sea and up to 18°C in the Bering Strait. Even this late in the melting season (September 28, 2013), sea surface temperatures of over 12°C are still recorded close to Svalbard (image right), in an area where methane hydrates are known to have become destabilized over the past few years. There are no warnings that, wherever the sea ice retreats, sea surface temperature anomalies are coloring the Arctic Ocean scarlet red, with temperature anomalies of over 4°C all over the place (image below). No warnings that earthquakes can destabilize hydrates that have become vulnerable due to temperature rises.

    This lack of warning gives the false impression that the situation could only become dangerous until after decades of further emissions.  

    Indeed, the IPCC acts as if there was a carbon budget to divide among countries, whereas the reality is that there is a huge carbon debt to our children, while the situation could become catastropic any time soon. It appears that the IPCC has been trying desperately to please those with vested interests in maintaining the status quo.


    In reality, the situation calls for comprehensive and effective action, such as proposed at the ClimatePlan blog.


    Related

    - Just do NOT tell them the moster exists
    http://arctic-news.blogspot.com/2013/10/just-do-not-tell-them-the-monster-exists.html



    Sunday, September 15, 2013

    Colorado flooding, what does the IPCC say?

    Flooding in Colorado has caused at least five death. As of 14 September, more than 500 were unaccounted for. Nearly 19,000 homes are damaged or destroyed.

    Paul Beckwith comments:

    Total destruction. Roads. Homes. Power lines. Water pipelines. Sewer culverts and pipes. And an oil pipeline. Not to mention the lives lost and disrupted forever.

    Just be glad that the oil pipeline was not something like Keystone XL or Line 9 or Line 6.

    Wake up people. Isn't it ironic that extreme weather events are accelerating in frequency, magnitude, spatial extent, and duration and are due to the very abrupt climate change that is being rapidly worsened from fossil fuel emissions; from burning the very stuff that is carried by the oil pipeline infrastructure.

    And politicians are either very stupid or simply slaves to the fossil fuel companies since they ignore all laws protecting the environment, and even rewrite the legal system to eliminate any laws that slow or prevent pipelines, tar sands, fracking and any other fossil fuel infrastructure from being built. While publishing outright lies slamming renewable energy.

    No wonder police forces across the world are becoming branches of the military; they realize that the public will soon be furious at the politicians and corporations and government corruption at all levels.

    Meanwhile, according to the dailymail leaked IPCC reports say that "Global warming is just HALF what we said". So, what's going on? For starters, it appears that the IPCC has been fooled into ignoring the dangerous situation in the Arctic, i.e. albedo changes, methane and further feedbacks. The cartoon below illustrates this, please comment and share widely! 



    Saturday, April 6, 2013

    How much will temperatures rise?

    If we take the NASA Annual Mean Land-Ocean Temperatures and draw a projection into the future, temperatures will quickly be 3 degrees Celsius higher than the base period (1951-1980), i.e. well before 2050, as illustrated on image 1. below. 

    Image 1. Temperatures will be 3 degrees Celsius higher well before 2050

    Above projection appears to be steeper than even the worst-case scenario pictured by the IPCC for years, such as on the image below.

    Image 2. from IPCC 2001. Projections of globally averaged surface temperature 2000-2100 are shown for six SRES scenarios and IS92a using a model with average climate sensitivity. The grey region marked "several models all SRES envelope" shows the range of results from the full range of 35 SRES scenarios in addition to those from a range of models with different climate sensitivities. The temperature scale is departure from the 1990 value.
    Could temperatures rise faster in future than what the IPCC anticipated in 2001? The answer must be yes! In 2007, the IPCC described that, even if greenhouse gas concentrations in the atmosphere were stabilized for 100 years at year 2000 values (B1), then we would still be committed to a further warming of 0.5°Celsius. This committed warming should not be confused with ‘unavoidable climate change’ over the next half century, which would be greater because forcing cannot be instantly stabilized. And of course, as it turned out, emissions have not been stabilized at 2000 values, but have in fact increased substantially.

    As it turned out, the models used by the IPCC made all kinds of assumptions that didn't eventuate. But before deciding to instead settle for a relatively simple extrapolation of observed data, there are some issues that require a further look.  

    As discussed in the earlier post Accelerated Arctic Warming, temperatures in the Arctic have been rising at a much faster pace than global temperatures, and if this accelerated rise continues, we can expect a 10 degrees Celsius rise in the Arctic before 2040, as illustrated by image 3. below.  

    Image 3. Three kinds of warming - 2: Accelerated warming in the Arctic 
    Such a temperature rise in the Arctic will undoubtedly lead to additional greenhouse gas emissions in the Arctic, of carbon dioxide, nitrous oxide and particularly methane, threatening to trigger runaway global warming. 

    The image below, from the methane-hydrates blog, combines these three kinds of warming, showing global temperatures that soon catch up with accelerated Arctic warming, as heatwaves at high latitudes will cause wildfires, in particular in Siberia, where firestorms in peat-lands, tundras and forests could release huge amounts of emissions, including soot, much of which could settle on the Himalayan plateau, darkening the ice and snow and resulting in more local heat absorption. Rapid melt of glaciers will then cause flooding at first, followed by dramatic decreases in the flow of river water that up to a billion people now depend on for water supply and irrigation.

    In other words, the situation looks much more dire than what most models make us believe; the more reason to adopt the climate plan that is also described at the post at the methane-hydrates blog.

    Image 4. Three kinds of warming - 1, 2 and 3 


    References

    - IPCC (TAR) - Climate Change 2001: Synthesis Report

    - IPCC (AR4) - Climate Change 2007: Working Group I: The Physical Science Basis

    - Accelerated Arctic Warming

    - Methane hydrates

    Tuesday, January 29, 2013

    THE TRAGIC FAILURE OF THE SCIENTIFIC COMMUNITY TO ISSUE ADEQUATE WARNING RE: THE ARCTIC TIPPING POINT EMERGENCY

    by Gary Houser

    "Our greatest concern is that loss of Arctic sea ice creates a grave threat of passing two other tipping points -- the potential instability of the Greenland ice sheet and methane hydrates. These latter two tipping points would have consequences that are practically irreversible on time scales of relevance to humanity." [1]  ....."We are in a planetary emergency." [2] - World renowned climate scientist Dr. James Hansen
    The scientific community must be commended for its efforts to convey to the world the reality of climate disruption caused by carbon dioxide (CO2) emissions. That world is now grappling with the politics of whether effective reductions can be achieved in time. But there appears to be a new danger emerging from the Arctic which threatens to accelerate such disruption beyond the reach of any meaningful control. Cutting edge researchers in the field are observing large plumes of methane rising from the shallow seabeds. [3] Others are discovering heightened levels through airborne measurement. [4]  According to the most recent Intergovernmental Panel on Climate Change (IPCC) report, methane is a global warming gas no less than 72 times more powerful than CO2. [5]

    In the course of working on a documentary [6] on this super greenhouse gas and the frightening prospect that such is beginning to thaw and release to the atmosphere in the Arctic, the author has encountered a highly disturbing "disconnect". On the one hand, there are highly eminent scientists - such as James Hansen - warning that the situation in the Arctic could well lead to the crossing of an "irreversible tipping point". On the other hand, such warning is not finding its way into the major scientific reports which government policy makers will use to chart their response. It cannot be found in either the draft of the new IPCC report or the draft of the U.S. National Climate Assessment.

    As global climate disruption begins to enter the realm of "tipping points of no return", humanity is coming face to face with a moral crisis inextricably linked to the physical crisis. Scientists are first and foremost human beings. If information is discovered that points to a real possibility that a given situation can abruptly escalate into an existential threat to human survival, there is a profound moral responsibility to issue a loud and unambiguous warning.

    There are now several indicators that the factors which could generate such a threat are indeed lining up in the Arctic - such as the ice collapse and the loss of solar reflectivity that will only accelerate further Arctic warming. At this time however, other than a handful of notable exceptions, the scientific community as a whole is utterly failing to issue such warning. This essay is an attempt to grapple with what might be the systemic reasons for such failure. Although the author is not a scientist and addresses the issue from outside that frame of reference, reasons are provided for why such may be an advantage rather than a disadvantage.

    The climate science community around the world is performing a tremendous service to humanity. As climate disruption continues to escalate and the threat to our society becomes more grave, its members have worked long hours - in many cases on their own time - to gather the relevant data. As only one example. documentary-related exchanges between the author and scientists working in the Arctic make clear that much personal hardship and sacrifice are being endured in order to conduct such research.

    It is well known that in preparation for their work, scientists are taught to exercise great caution in reporting their findings and never stray beyond that for which there is incontrovertible evidence. Even when it appears evidence is present, it is the time-honored tradition of science to still submit any conclusions drawn from such to their peers for review.

    In almost every case, this strict methodology has well served the public interest. It has filtered out errors and made solid information available to the public and policy makers. But in the arena of global climate disruption, humanity is now facing something unique and quite un-paralleled by any other issue. There is a point in the process of climate de-stabilization where colossal natural forces can be unleashed which are capable of developing their own unstoppable momentum and spiralling well beyond the reach of human control. When such occurs - the already mentioned "irreversible tipping point".

    Though a term used frequently in discussions on climate, its full meaning and magnitude have rarely been taken to heart. Far too often, it is simply another "buzzword" dropped into an article and treated only in the most superficial way. Indeed, such usage seems almost to "anesthetize" us to the horrific reality it points toward. In truth, the crossing of some kinds of tipping points can lead to the crushing of our entire civilization on no less of a scale than nuclear war. The devastation can be so sweeping that the concept of "adaptation" becomes meaningless. "Irreversible" refers to the brutal fact that once humanity allows this process to become triggered, there will be no chance to go back, no chance to learn from our mistakes and correct them.

    Of the several tipping point scenarios which are possible, one considered especially frightening is the prospect of triggering an abrupt and large scale methane release in the shallow seabeds along Arctic coastlines. The entire climate debate has been dominated by a discussion of humanity's contribution to the problem - which has been the emission of carbon dioxide since the beginning of the industrial age. What science has discovered is that nature has its own vast storehouse of ancient carbon trapped in the ice of the polar regions.

    The scenario of most concern to methane "specialists" is what's known as the "runaway feedback" reaction. As described by Dr. Ira Leifer of the Marine Science Institute at the Univ. of Calif.: "A runaway feedback effect would be where methane comes out of the ocean into the atmosphere leading to warming, leading to warmer oceans and more methane coming out, causing an accelerated rate of warming in what one could describe as a runaway train." [7]  A cycle would be initiated which feeds upon itself and therefore becomes unstoppable.

    When one looks at the history of the most devastating "wipeouts" of life on earth - such mass extinction events as the PETM or the end-Permian - it is sobering to learn that large scale release of methane has been pointed to as a "probable cause". World-renowned climate science pioneer Dr. James Hansen relates methane to the PETM extinction event:
    "There have been times in the earth's history when methane hydrates on the continental shelves melted and went into the atmosphere and caused global warming of six to nine degrees Celsius, which is 10 to 18 degrees Fahrenheit." [8]
    The end-Permian extinction was the most colossal mass extinction event, wiping out over 90% of the life forms on earth. According to paleontologist Michael Benton - considered by some to have written the definitive book on this event (When Life Nearly Died):
    "Normally, long-term global processes act to bring greenhouse gas levels down. This kind of negative feedback keeps the Earth in equilibrium. But what happens if the release of methane is so huge and fast that normal feedback processes are overwhelmed? Then you have a "runaway greenhouse"...... As temperatures rise, species start to go extinct. Plants and plankton die off and oxygen levels plummet. This is what seems to have happened 251 million years ago." [9]
    While devastation on this level is inherently difficult to grasp, one attempt to convey such is provided in the documentary "Miracle Planet". [10] Though absolute certainty on causation may not be attainable, just the possibility that our society may be triggering a force with this kind of power is mind-boggling enough.


    Could anything of this unspeakable magnitude be triggered by thawing methane in the Arctic? Again Ira Leifer: "The amount of methane that’s trapped under the permafrost and in hydrates in the Arctic areas is so large that if it was rapidly released it could radically change the atmosphere in a way that would be probably unstoppable and inimicable to human life." [11]  Hansen adds: "It is difficult to imagine how the methane clathrates could survive, once the ocean has had time to warm. In that event a PETM-like warming could be added on top of the fossil fuel warming." [12]  Dr. Hansen - along with Arctic ice and methane experts - address this issue in more depth in a documentary co-produced by the author. [13]

    Methane plumes rising from the seafloor
    In examining the key reports being made by the scientific community - such as drafts for the new IPCC document and the National Climate Assessment (of the U.S.), one might expect there to be dire warnings about a potential "point of no return" if these forces are unleashed. We do find a discussion of the various consequences of climate disruption that are hitting right now - Arctic and glacial melt, extreme weather, more powerful hurricanes and storms, increases in drought, food shortages, wildfires, and flooding. But where is the discussion of what these symptoms of disruption are leading to? One of the most frightening spectres looming over humanity - the tipping point of a methane "runaway" - is completely ignored.

    How can this be possible? Several factors may be combining. As stated earlier, scientists are trained to only make statements based on "hard evidence". In the case of a potentially abrupt methane runaway, it is not possible to pinpoint a specific moment in time when such may be initiated. It cannot be stated with certainty whether this will happen in 2017, 2027, or 2037. Without this ability to pinpoint and quantify, the response of science has been to simply not address it.

    Secondly, scientists are human. All of us have great difficulty in truly facing and absorbing the full implications of a complete collapse of human society and even a wiping out of most or all life on the planet. It is human to utilize methods of psychological denial to block out such a staggeringly horrific threat to our collective existence. In this instance, scientists are no different. Unless there is "absolute proof" staring us in the face, the overwhelming tendency is to push such thoughts out of our consciousness so we can "get on with our day".

    A third factor is that the current methodology for the reporting of climate science is fundamentally flawed and dysfunctional in regard to the challenge at hand. The single most important such report is that issued by the Intergovernmental Panel on Climate Change (IPCC). It is based on a consensus process and an intensively time-consuming level of peer review. Under normal circumstances, such would be seen as positives. But in a situation where humanity may come under severe threat in the very near term future, these reports are essentially looking backward at where science has been for the past 7 years rather than reporting the cutting edge trend lines. A glaring example is how the IPCC completely missed on predicting the speed at which the Arctic would melt.

    The tremendous danger with this situation is that by the time any kind of "absolute proof" is gathered, it will very likely be too late to stop the conditions bringing on the dreaded runaway reaction. An unspeakably terrifying process will already have been set into motion and humanity at that point will be helpless to stop it. Temperatures on earth could eventually skyrocket to a level where mass famine is initiated.
    What are the potential solutions to these terrible problems? One would be procedural. A special section of such reports should be dedicated to communicating the work of those scientists whose research is on the cutting edge of dealing with potentially huge climate impacts and yet still "in progress" in terms of gathering the relevant data. For example, even though the precise timing of a methane runaway cannot be predicted, there should be a report on the trend lines and the extent to which the conditions that could bring on a runaway are manifesting. If those conditions are lining up to a considerable extent, then an appropriate warning should be issued.

    A second corrective step is more related to basic philosophy and morality. At the Earth Summit in Rio in 1992, representatives of the world's nations agreed to apply the precautionary principle in determining whether an action should go forward to prevent irreversible damage to the environment. Principle #15 of the Rio Declaration [14] states that:
    "In order to protect the environment, the precautionary approach shall be widely applied by States according to their capabilities. Where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation."
    In a further treatment of the meaning of the precautionary principle, it has been stated that there must be
    "a willingness to take action in advance of scientific proof of evidence of the need for the proposed action on the grounds that further delay will prove ultimately most costly to society and nature, and, in the longer term, selfish and unfair to future generations." [15]
    A methane runaway in the Arctic more than meets the criteria of being a "threat" which can bring about "irreversible damage". Due to its potential to create an unstoppable wave of continually rising temperatures capable of initiating something as horrendous as a mass extinction event, its irreversible damage could be of the most frightening magnitude imaginable. If humanity failed to recognize this danger and allowed its occurrence, such would most certainly constitute an irreparable crime against future generations. The most fundamental tenet of human morality demands that in such a unique situation the scientific community act on the basis of the precautionary principle and issue the appropriate warning.

    In his powerful book on the ethics of nuclear war, Jonathan Schell wrote: "To kill a human being is murder, but what crime is it to cancel the numberless multitude of unconceived people?" [16] In the words of the ecological ethicist David Orr: "Climate destabilization, like nuclear war, has the potential to destroy all human life on Earth and in effect 'murder the future'......... Willfully caused extinction is a crime that as yet has no name." [17]

    Is it possible that the very pillar of science which has served our society so well - the uncompromising demand for incontrovertible "evidence" - has in this unprecedented current crisis become a dangerous obstruction? Is it possible that this requirement of absolute "proof" is creating a perceptual blindness that could pave the way for the most horrendous suffering in the history of civilization?

    To the scientists who may read this essay, an appeal is made in the name of our collective humanity to truly confront and grapple with the meaning of the term "irreversible" and weigh the potentially horrific consequences of silence. It is no violation of scientific "objectivity" to look at trend lines and determine whether their continued trajectory might well carry our civilization over the cliff. And if this possibility is there, is there not a profound moral obligation under the precautionary principle to issue a loud and unambiguous warning to humanity?

    Before arriving at an answer, the reader - and especially any member of the scientific community - is invited to view a powerful film that is simply entitled "HOME". [18] In this artistic masterpiece, images of life on earth convey beyond the reach of words the incredible magnificence of what will be lost if climate disruption is allowed to escalate into an unstoppable "wipe-out". It also describes the methane lurking in the Arctic as a "climatic time bomb". Please watch and please speak out before it is too late. As James Hansen says: "We are in a planetary emergency."

    LINKS

    [1] Bloomberg, August 17, 2012
    [2] AFP: 'Planetary emergency' due to Arctic melt, experts warn
    [3] Vast methane 'plumes' seen in Arctic ocean as ... - The Independent
    [4] Danger from the deep: New climate threat as methane rises from ...
    [5] www.ipcc.ch/publications_and_data/ar4/wg1/en/tssts-2-5.html
    [6] [Documentary co-produced by author]: Arctic News: Arctic methane: Why the sea ice matters
    [7] Interview with Leifer for documentary
    [8] Interview with Hansen http://youtu.be/ACHLayfA6_4
    [9] Wipeout: the end-Permian mass extinction
    [10] 6 minute clip from "Miracle Planet": http://youtu.be/exfNNDExxIc
    [11] Interview with Leifer for documentary
    [12] Hansen's book: Storms of My Grandchildren: The Truth About the Coming Climate ...
    [13] Same as link at #6
    [14] Rio Declaration
    [15] www.dieoff.org/page31.htm
    [16] The Fate of the Earth - The New York Times
    [17] Thinking About the Unthinkable by David Orr We ... - Moral Ground
    [18] [Link to free full film]: http://www.youtube.com/watch?v=jqxENMKaeCU