Showing posts with label clathrates. Show all posts
Showing posts with label clathrates. Show all posts

Thursday, November 20, 2014

Ocean Temperature Rise Continues


Ocean Temperature Rise

Of all the excess heat that results from people's emissions, 93.4% goes into oceans. Accordingly, the temperature of oceans has risen substantially.

NOAA analysis shows that the most recent 12-month period, November 2013–October 2014, broke the record (set just last month) for the all-time warmest 12-month period in the 135-year period of record. The global oceans were the warmest on record for October. For January–October, the average global sea surface temperature was also record high.


The danger is that ocean temperatures will continue to rise, especially in the North Atlantic, and that the Gulf Stream will keep carrying ever warmer water from the North Atlantic into the Arctic Ocean, threatening to unleash huge methane eruptions from the Arctic Ocean's seafloor, in turn causing even higher temperatures and more extreme weather events, wildfires, etc.


High Methane Levels

High methane levels were recorded over the Arctic Ocean in October, as discussed in this earlier post, and were sustained in November, as discussed in this post. Methane levels as high as 2717 ppb were recorded on November 16, 2014, p.m, by the MetOp-1 satellite at 469 mb (i.e. 19,820 ft or 6,041 m altitude), as the image below shows.

Methane levels as high as 2549 ppb were recorded on November 19, 2014, p.m, by the MetOp-2 satellite at 586 mb (i.e. 14,385 ft or 4,384 m altitude), as the image below shows.

Above image further confirms earlier indications that these high methane levels do indeed result from large methane eruptions from the seafloor of the Arctic Ocean.

Greenhouse gas levels in general are very high over the Arctic, as earlier discussed in a recent post and as illustrated by the image below, showing carbon dioxide levels as high as 420 ppm at high latitudes, while the global mean was 403 ppm, on November 19, 2014, p.m., at 945 mb (i.e. 1,916 ft or 584 m altitude).


As said, sustained instances of large abrupt methane eruptions from the seafloor of the Arctic Ocean threaten to strongly accelerate warming in the Arctic even further, in turn resulting in ever more methane being released, as illustrated in the image below, from an earlier post.


Self-reinforcing Feedback Loops



Such methane eruptions are part of a number of self-reinforcing feedback loops that can strongly accelerate warming in the Arctic. Above image, from an earlier post, illustrates two such feedbacks, i.e. albedo changes due to snow and ice demise, and methane releases. Further feedbacks are described in this post and this post, and in the image below.

For a discussion of these and further feedbacks, see this page at the Climate Plan blog 
The threat is that such rapid temperature rises will appear at first in hotspots over the Arctic and eventually around the globe, while also resulting in huge temperature swings that could result in depletion of supply of food and fresh water, as further illustrated by the above image, from an earlier post, and the image below, from another earlier post.
[ click on image at original post to enlarge ]


IPCC warnings not strong enough



In above paragraph, the IPCC warns about the risk of methane eruptions from the seafloor of the Arctic Ocean further accelerating global warming. While the IPCC does model for a temperature rise that could exceed 12 degrees Celsius in a 'business as usual' scenario (i.e. without action taken), the IPCC does not anticipate that such a rise could occur before the year 2250, as illustrated by the image below.


The situation could be much worse than foreseen by the IPCC, due to a number of reasons, including:
  1. The non-linear way feedbacks can hugely increase temperature rises.
  2.  The IPCC's underestimation of the amount of methane contained in sediments under the Arctic Ocean and prone to be released as temperatures rise. Shakhova et al. estimate the accumulated methane potential for the Eastern Siberian Arctic Shelf (ESAS) alone as follows:
    - organic carbon in permafrost of about 500 Gt;
    - about 1000 Gt in hydrate deposits; and
    - about 700 Gt in free gas beneath the gas hydrate stability zone.
    Back in 2008, 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.
    Furthermore, mantel methane could add to our predicament, as discussed in an earlier post.
  3. Back in 2002, Malcolm Light already warned that seismic events could trigger destabilization of methane hydrates. Furthermore, huge temperature swings can combine with pressure swings and storms, and with swings between expansion and contraction of soil and ice, resulting in severe shocks to ecosystems, as described in an earlier post
  4. The IPCC's ignoring of large methane eruptions from the seafloor of the Arctic Oceans and the resulting growth of mean global methane levels at higher altitudes, as discussed in an earlier post.
Steven Sherwood et al. wrote back in 2010 that peak heat stress, quantified by wet bulb temperature, across diverse climates today never exceeds 31 degrees Celsius (see also this update). Some may believe that this doesn't apply to the Arctic and the higher altitudes in mountain regions. However, at the June Solstice the amount of solar radiation received in the Arctic is higher than anywhere else on Earth, An increased occurence and intensity of heatwaves could expose large areas of the Arctic and mountain regions to sustained heatwaves exceeding peak heat stress temperatures. In addition, ocean acidification and oxygen depletion in the Arctic Ocean would make it hard for fish, seals, polar bears and further wildlife to survive. Furthermore, the short growth season combined with a long, cold winter limits vegetation in the Arctic, while ecosystems are also becoming increasingly exposed to wild weather swings and wildfires.


Risk Assessment

When taking above points into acount, an absence of action seems to guarantee human extinction by the year 2050. Little action will be ‘too little, too late’ and will merely delay human extinction by a few years, as illustrated by the graph below.


The graph identifies the years 2030 and 2040 as critical. Beyond the year 2030, the risk that humans will go extrinct grows larger than 1% in the absence of action. By the year 2040, the risk of human extinction will have increased substantially, especially if no action will have been taken, but also if too little action will have been taken up to 2040, while even with the best possible programs put in place by the year 2015, there will be a 2% risk of human extinction by 2040, e.g. due to war over what action to take, or due to political opposition or errors making such programs ineffective or even counter-productive.

In conclusion, it is highly likely that the risk of human extinction already now is intolerably high and rising with every moment passing with little no action taken to reduce the risk. This calls for comprehensive and effective action, as further discussed at the Climate Plan blog.


References

- Intergovernmental Panel on Climate Change (IPCC) WGI Fifth Assessment Report (AR5), Final Draft (7 June 2013), page 168.
http://www.climatechange2013.org/images/uploads/WGIAR5_WGI-12Doc2b_FinalDraft_Chapter02.pdf

- Intergovernmental Panel on Climate Change (IPCC) WGI Fifth Assessment Report (AR5), Final Draft (7 June 2013), Figure 12.5.
http://www.climatechange2013.org/images/uploads/WGIAR5_WGI-12Doc2b_FinalDraft_Chapter12.pdf

- An adaptability limit to climate change due to heat stress - by Steven C. Sherwood & Matthew Huber
http://www.pnas.org/content/early/2010/04/26/0913352107.full.pdf

- Ocean Temperature Rise - by Sam Carana
http://arctic-news.blogspot.com/2014/10/ocean-temperature-rise.html

- Methane release from the East Siberian Arctic Shelf and the Potential for Abrupt Climate Change - by Natalia Shakhova & Igor Semiletov
http://symposium2010.serdp-estcp.org/content/download/8914/107496/version/3/file/1A_Shakhova_Final.pdf

- Anomalies of methane in the atmosphere over the East Siberian shelf: Is there any sign of methane leakage from shallow shelf hydrates? - by Shakhova, Semiletov, Salyuk & Kosmach  http://www.cosis.net/abstracts/EGU2008/01526/EGU2008-A-01526.pdf

- Mantle Methane - by Malcolm Light
http://arctic-news.blogspot.com/2014/02/mantle-methane.html

- Evidence linking Arctic amplification to extreme weather in mid-latitudes - by Jennifer A. Francis and S.J. Vavrus, in: Geophysical Research Letters 39 (6):. doi:10.1029/2012GL051000
http://onlinelibrary.wiley.com/doi/10.1029/2012GL051000/abstract

- Near-Term Human Extinction - by Sam Carana
http://arctic-news.blogspot.com/2014/04/near-term-human-extinction.html

- Warm waters threaten to trigger huge methane eruptions from Arctic Ocean seafloor - by Sam Carana
http://arctic-news.blogspot.com/2014/08/warm-waters-threaten-to-trigger-huge-methane-releases-from-arctic-ocean-seafloor.html

- How many deaths could result from failure to act on climate change? - by sam Carana
http://arctic-news.blogspot.com/2014/05/how-many-deaths-could-result-from-failure-to-act-on-climate-change.html

- Methane linked to Seismic Activity in the Arctic - by Malcolm P. Light & Sam Carana
http://arctic-news.blogspot.com/p/seismic-activity.html

- Wild Weather Swings - by Sam Carana
http://arctic-news.blogspot.com/2014/10/wild-weather-swings.html

- Four Hiroshima bombs a second: how we imagine climate change - by Sam Carana
http://arctic-news.blogspot.com/2013/08/four-hiroshima-bombs-second-how-we-imagine-climate-change.html

- Polar jet stream appears hugely deformed
http://arctic-news.blogspot.com/2012/12/polar-jet-stream-appears-hugely-deformed.html

- Near-Term Human Extinction
http://arctic-news.blogspot.com/2014/04/near-term-human-extinction.html


Sunday, November 2, 2014

Methane Erupting From East Siberian Arctic Shelf

Methane is erupting in huge amounts from the seafloor of the Arctic Ocean, as illustrated by the images below, showing methane over the East Siberian Arctic Shelf on October 31, 2014.

The top image on the right shows methane at an altitude of 19,820 feet (6,041 m), on October 31, 2014, pm, as captured by the MetOp1 satellite.

The middle image shows the location of the seas north of Siberia, and shows methane over the Arctic Ocean close to sea level, for reference.

The bottom image is an animation, starting at an altitude close to sea level and rising over 25 frames to an altitude of 19,820 feet (6,041 m).

As altitude increases, the methane can be seen emerging from the Laptev Sea at first, then spreading over further parts of the Arctic Ocean.

The yellow color indicates that methane is present at levels of 1950 ppb or higher.

High CO2 levels over Arctic Ocean

As in the previous post, an image has been added (below) showing recent carbon dioxide levels. Close to ground level (or rather sea level), mean CO2 level increased to 402 ppm on November 1, 2014 am, as measured by the MetOp-1 satellite.


The image below shows a comparison between CO2 (left) and methane (right).

[ Image added later, Ed. Click on image to enlarge ]
Above images indicate that large amounts of methane are broken down at higher latitudes on the Northern Hemisphere, especially over the Arctic Ocean.

Large methane eruptions from the seafloor of Arctic Ocean continue

The two images below [added later, ed.] further confirm the huge size of the methane erupting from the seafloor of the Arctic Ocean. The image directly below shows that levels as high as 2362 ppb were recorded on November 5, 2014 p.m.by the MetOp-1 satellite at an altitude of 14,385 ft (4,384 m) altitude. The image also shows that the methane is predominantly visible over the Arctic Ocean, further confirming that this is indeed the cause of the continued high methane levels.


The recent methane eruptions from the seafloor of the Arctic Ocean also appear to be pushing up methane levels at Mauna Loa, Hawaii, as measured by NOAA on November 6, 2014, as illustrated by the combination image below showing daily averages (left) and hourly averages (right).


Methane eruptions from Arctic Ocean seafloor look set to continue for months to come

As oceans keep warming, the Gulf Stream
will keep moving ocean heat into the Arctic Ocean, and ever more methane threatens to erupt from the seafloor of the Arctic Ocean.

The image on the right shows the huge sea surface temperature anomalies off the coast of North America and in the Arctic. Heat in the North Atlantic will take some time to travel to the Arctic Ocean, so this heat has yet to arrive there and contribute to cause further methane eruptions.

Nations are ignoring the growing dangers and keep each seeking a bigger share of a 'carbon budget', but in reality there is no carbon budget to divide. Instead, there is a huge debt built up by a joint failure of nations to act on pollution.

Increased methane eruptions from the seafloor of the Arctic Ocean threaten to further accelerate warming in the Arctic, in turn resulting in ever more methane being released, as illustrated in the image below, from an earlier post.

Methane in historic perspective

The image below shows that global methane levels have risen from 723 ppb in 1755 to 1839 ppb in 2014, a rise of more than 254%. Growth did flatten down for a few years in the early 2000s, but the overall rise does not appear to slow down.

The right-end of this graph is shown in greater detail on the image below, which also has a trendline extended to the year 2021, against a background of methane levels measured by the MetOp-1 satellite on November 2, 2014, p.m.

Note that the image used as background in the plot area has different axis labels, i.e. latitude for the vertical axis and longitude for the horizontal axis. The image below gives the levels associated with the colors on the background image, with yellow indicating levels of 1950 parts per billion (ppb) and higher.


Remember that the level of 723 ppb in 1755 was not a paleo-historic low, but instead was the high peak of a Milankovitch Cycle. The image below further illustrates this point.


And so does the image below, by Reg Morrison.


Comprehensive and effective action needed

The situation is dire and calls for comprehensive and effective action. The Climate Plan seeks emission cuts, removal of pollution from soils, oceans and atmosphere, and further action, as illustrated by the image below, from an earlier post.




Tuesday, October 14, 2014

Royal Society snubs important Arctic scientists and their research

by Dorsi Diaz

Nick Breeze interview with East Siberian Arctic Shelf researcher (ESAS) Dr. Natalia Shakhova on why the important news about methane news is not reaching mainstream news. Powerful interests seem to be in the way of Arctic methane education.

A few days ago an important Royal Society meeting took place that presented important research on the current state of the Arctic. Called ‘Arctic sea ice reduction: the evidence, models, and global impacts’, the event was held in London, England. It was advertised as a “Scientific discussion meeting organised by Dr Daniel Feltham, Dr Sheldon Bacon, Dr Mark Brandon and Professor (Emeritus) Julian Hunt FRS.”

Powerful interests seem to be standing in the way of
important research on 
methane and a dwindling Arctic.
Nick Breeze, Dorsi Diaz
The presenters and attendees there included a list of over 200 important climate scientists from different parts of the world. One could assume from the list of workshops that this conference was being held to talk about and discuss the critical loss of ice we are seeing in the Arctic, and that the purpose of the meeting would be to include any and all data relevant to this never-before-seen-in-human-history event.

People following the rapid loss of Arctic ice and all that data could even be forgiven for feelings of excitement and hope that at least someone is ‘working on it’. We could have assumed that communication was one of the goals here, especially since the conference was tweeted widely, even from inside the conference. Following those tweets we could also have assumed that it was intended that people in the conference were to share information that was important not only about climate change but the loss of the Arctic sea ice.

Such a conference sounds like a great idea, doesn't it? We could have a cause for hope and the organizers seemed transparent, even going so far as to tweet plans. But such assumptions and presumptions would have been misplaced. Instead, what happened has turned into what has been called a Royal Society snubbing of scientists: a brouhaha has developed both in scientific circles and the world wide web, and has now raised serious questions. The main issue was that cutting edge scientists Dr Shakhova and Dr Semiletov were not even invited to present or discuss their very recent findings on important Arctic sea ice and methane releases.

Who are they and what did they have to offer to this conference? Perhaps it was an ‘accident’ that they were not invited? Maybe they were just not on the guest list? Or, if they were deliberately not invited, what could be the reason?

As it turns out Dr Shakhova & Dr Semiletov had just returned from a crucial expedition to the Arctic. The Swerus C3 expedition was conveyed aboard the icebreaker Oden. The goal was to gather data about the Arctic, in particular concerning methane hydrates and systems interaction.

Arctic Expedition

Martin Jakobsson, Professor at Stockholm University and chief scientist on Leg 2, says: “SWERUS-C3 is a two-leg Swedish-Russian-US cooperation that will investigate the linkages between climate, the cryosphere, and carbon. Leg one of the expedition departed from Tromsø, Norway, on 5 July and travelled along the Russian Arctic coast to reach Barrow, Alaska, where a change-over of research staff and crew took place on 20 August. On 21 August SWERUS-C3 set off for its return journey back to Tromsø, this time over the Lomonosov Ridge, an underwater mountain range.”

Jakobsson continues: “During the expedition's second leg we studied the warm Atlantic water that flows into the Arctic Ocean and pockmarks at 900-meter depths as well as the enormous tracks on the ocean floor left by previous ice sheets found in the central Arctic Ocean. The material will be able to provide new perspectives on Arctic sea ice development and history as well as stability of gas hydrates along the Arctic continental shelf.”

Findings in the Arctic have not been particularly reassuring; in fact they portend a dire scenario. A press release from University of Stockholm described that they discovered: “Vast methane plumes escaping from the seafloor of the Laptev continental slope. These early glimpses of what may be in store for a warming Arctic Ocean could help scientists project the future releases of the strong greenhouse gas methane from the Arctic Ocean.”

This could all be read as some mere diplomatic or career-based tussle among scientists, or some type of television drama happening at an obscure conference of less-than household names, so why would the average reader be interested in what this has to do with life on earth?

It does have everything to do with every being that inhabits this planet. To put it into context: Arctic events are turning into a planetary emergency and are developing as you read. Key is the full meltdown of Arctic sea ice, akin to our planetary air conditioner going kaput. Please see the startling Arctic Death Spiral photo here to check just how little Arctic ice is left: Arctic Death Spiral 1979-2013 ( Sea Ice Decline / Deglaciation)

Key words: Planetary emergency

A recent article in USA Today entitled Study: Earth in the midst of sixth mass extinction states: “The loss and decline of animals around the world — caused by habitat loss and global climate disruption — mean we're in the midst of a ‘sixth mass extinction’ of life on Earth, according to several studies out Thursday in the journal Science. One study found that although the human population has doubled in the past 35 years, the number of invertebrate animals – such as beetles, butterflies, spiders and worms – has decreased by 45% during that same period.” Simple Google searches on this topic allow one to uncover a recent addition of many such articles on the same topic.

To be clear, I have the utmost respect for the scientific community and what they have contributed to the advancement of science. I have interviewed some, and helped give voice to the work of scientists, professors, teachers. and experts: I believe in open communication. I believe that when there is a huge problem as in this case of our planetary emergency or ‘6th mass extinction event’, we need all hands on deck, especially the ones out there on the front lines. Dr Shakhova & Dr Semiletov are two of these.

According to computer modelling, our ‘Arctic air conditioner’ was supposed to stay intact and run effectively for many years. Previously the year 2100 was said to have been the year we would really see all ‘he##’ break loose. Now we realize that those models were way off. In fact, our ‘air-conditioner’ is self-destructing more every minute, causing a meandering jet stream which is already reeking climate havoc around the world: typhoons, hurricanes, tornadoes, and other such catastrophic climate events are more commonplace. Indeed, climate change has already become downright nasty. What we were told would not happen until much later is actually taking place right now.

Scientists and governments realize we have a great big problem and have started doing lots and lots of research into our ‘Arctic air conditioner’. Experts were sent to view the problem, Dr Shakhova & Dr Semiletov on board, and told to report back their findings.

The Problem

The air conditioning experts that were sent to check on the problem were not invited to address the Royal Society event to report back, nor to even discuss the air conditioner break down. To be fair, some of them were called upon, including Professor Peter Wadhams (although other significant issues arose to do with Prof Wadhams too). However, the only reporting scientists who were called upon to report on the problem were those same who have been using those same types of conservative computer modeling methods that have traditionally proved to be seriously behind the time actual timeline followed by the Arctic ice.

Clearly it is has been safe to say for years now that those computer modeling methods are more conservative than accurate, and are now in fact far and away off the mark of accuracy. Even a non-scientist can clearly see there is a deeply serious divide between the predictions of conservative models and the dramatic melting events of current days.

The Royal Society plans a ‘communicative’ conference on Arctic sea-ice and leaves out experts recently returned from a life-threatening expedition specifically to review the problem. Meanwhile, others in comfortable office chairs merely crunch data for help guessing at possible problem scenarios. To whom would you listen? Would you trust just one expert or would you call on as many experts as possible to pool resources? Do you feel safe just listening to one side of the story without real-world observations, data, and discussion being included?

created by Zaven Ohannessian with screenshot from interview with Dr. Natalia Shakhova, by Nick Breeze

Imagine for a minute that you are Shakhova and her colleagues. You have been sent to view and report back on the broken air conditioner. You have observed rapid and almost unbelievable changes taking place on your expeditions. It is falling apart and leaking methane. You know that methane is many times more potent and powerful than carbon dioxide and can cause way more damage to the earth if lots of it are coming out. In fact, you have not seen such massive changes before on numerous previous expeditions. You are deeply concerned and really need to let others involved with the ‘Arctic air conditioner’ know what you have seen.

But, when a chance to talk about your data and observations comes up, you are not invited. The very important meeting goes on without you and nothing that you have seen, documented, and observed will become public knowledge. You are stunned by this snub. You want to be able to tell them and therefore the world what is going on. You want to get this information out so that they will let others know what is happening to our ‘Arctic air conditioner’ and the symptoms that its melt are causing.

I can only imagine how that must have felt, sitting on this newest and very important data and not being able to share. Politely though, Dr Shakhova writes a letter about her exclusion, and asks to be able to present her data and observations. She sends a letter to Sir Paul Nurse at the Royal Academy (via climate communication journalist Nick Breeze):

October 4th, 2014
By mail and email

Dear Sir Paul Nurse,

We are pleased that the Royal Society recognizes the value of Arctic science and hosted an important scientific meeting last week, organised by Dr D. Feltham, Dr S. Bacon, Dr M. Brandon, and Professor Emeritus J. Hunt (https://royalsociety.org/events/2014/arctic-sea-ice/).

Our colleagues and we have been studying the East Siberian Arctic Shelf (ESAS) for more than 20 years and have detailed observational knowledge of changes occurring in this region, as documented by publications in leading journals such as Science, Nature, and Nature Geosciences. During these years, we performed more than 20 all-seasonal expeditions that allowed us to accumulate a large and comprehensive data set consisting of hydrological, biogeochemical, and geophysical data and providing a quality of coverage that is hard to achieve, even in more accessible areas of the World Ocean.

To date, we are the only scientists to have long-term observational data on methane in the ESAS. Despite peculiarities in regulation that limit access of foreign scientists to the Russian Exclusive Economic Zone, where the ESAS is located, over the years we have welcomed scientists from Sweden, the USA, The Netherlands, the UK, and other countries to work alongside us. A large international expedition performed in 2008 (ISSS-2008) was recognized as the best biogeochemical study of the IPY (2007-2008). The knowledge and experience we accumulated throughout these years of work laid the basis for an extensive Russian-Swedish expedition onboard I/B ODEN (SWERUS-3) that allowed more than 80 scientists from all over the world to collect more data from this unique area. The expedition was successfully concluded just a few days ago.

To our dismay, we were not invited to present our data at the Royal Society meeting. Furthermore, this week we discovered, via a twitter Storify summary (circulated by Dr. Brandon), that Dr. G. Schmidt was instead invited to discuss the methane issue and explicitly attacked our work using the model of another scholar, whose modelling effort is based on theoretical, untested assumptions having nothing to do with observations in the ESAS. While Dr. Schmidt has expertise in climate modelling, he is an expert neither on methane, nor on this region of the Arctic. Both scientists therefore have no observational knowledge on methane and associated processes in this area. Let us recall that your motto “Nullus in verba” was chosen by the founders of the Royal Society to express their resistance to the domination of authority; the principle so expressed requires all claims to be supported by facts that have been established by experiment. In our opinion, not only the words but also the actions of the organizers deliberately betrayed the principles of the Royal Society as expressed by the words “Nullus in verba.”

In addition, we would like to highlight the Anglo-American bias in the speaker list. It is worrisome that Russian scientific knowledge was missing, and therefore marginalized, despite a long history of outstanding Russian contributions to Arctic science. Being Russian scientists, we believe that prejudice against Russian science is currently growing due to political disagreements with the actions of the Russian government. This restricts our access to international scientific journals, which have become exceptionally demanding when it comes to publication of our work compared to the work of others on similar topics. We realize that the results of our work may interfere with the crucial interests of some powerful agencies and institutions; however, we believe that it was not the intent of the Royal Society to allow political considerations to override scientific integrity.

We understand that there can be scientific debate on this crucial topic as it relates to climate. However, it is biased to present only one side of the debate, the side based on theoretical assumptions and modelling. In our opinion, it was unfair to prevent us from presenting our more-than-decadal data, given that more than 200 scientists were invited to participate in debates. Furthermore, we are concerned that the Royal Society proceedings from this scientific meeting will be unbalanced to an unacceptable degree (which is what has happened on social media).

Consequently, we formally request the equal opportunity to present our data before you and other participants of this Royal Society meeting on the Arctic and that you as organizers refrain from producing any official proceedings before we are allowed to speak.

Sincerely,
On behalf of more than 30 scientists,
Natalia Shakhova and Igor Semiletov

Voicing concerns

Among concerned people following this closely is part-time Professor Paul Beckwith, PhD student of abrupt climate change. Beckwith offers his concerns on this latest turn of events at the Royal Society in his newest video: A little chat on methane

Beckwith’s latest statement about his overall assessment of the Arctic situation and where we stand is not particularly comforting either: Our climate system is presently undergoing preliminary stages of abrupt climate change. If allowed to continue, the planetary climate system is quite capable of undergoing an average global temperature increase of 5°C to 6°C over a decade or two. Precedence for changes at such a large rate can be found at numerous times in the paleo-records. From my chair, I conclude that it is vital that we slash greenhouse gas emissions and undergo a crash program of climate engineering to cool the Arctic region and keep the methane in place in the permafrost and ocean sediments.”

Beckwith points at research in the U.S., such as a study published in 2012 by Lawrence Livermore Laboratory researchers who sum up the situation as follows: “The question is not whether but how much and how quickly methane will be released due to warming, and whether it will be enough to trigger a runaway feedback loop.” The study, earlier discussed at the Arctic-news blog, concludes: “In our review of Arctic methane sources, we found that significant gaps in understanding remain of the mechanisms, magnitude, and likelihood of Arctic methane release. No authors stated that catastrophic release of methane—e.g., hundreds of Gt over years to decades—is the expected near-term outcome. But until the mechanisms are better-understood, such a catastrophe cannot be ruled out. The evidence is strong that methane had a role in past warming events, but the particular source and release mechanisms of methane in past warming is not settled. Whereas most authors indicated that a catastrophic release is unlikely, a chronic, climatically significant release of Arctic methane appears plausible. Such a release could undermine or overwhelm gradual emissions reductions made elsewhere, and thus warrants technological intervention.”

Beckwith further points at paper by 21 Russian scientists, including Shakhova and Semiletov, who sum up the situation as follows: “The emission of methane in several areas of the East Siberian Shelf is massive to the extent that growth in the methane concentrations in the atmosphere to values capable of causing a considerable and even catastrophic warming on the Earth is possible.”

In the meantime, we wait with anticipation to see what the U.K. Royal Society's response will be, and if we will be able to hear of Shakhova and Semiletov's latest data and observations on the state of the Arctic. I, for one, would like to know everything about how the ‘Arctic air conditioner’ is really doing; wouldn't you?

Planetary Emergency Update

As I write the text above, a new article is released: “It’s Worse Than We Thought” — New Study Finds That Earth is Warming Far Faster Than Expected. A small excerpt: “Earlier this week, a new study emerged showing that the world was indeed warming far faster than expected. The study, which aimed sensors at the top 2,000 feet of the World Ocean, found that waters had warmed to a far greater extent than our limited models, satellites, and sensors had captured. In particular, the Southern Ocean showed much greater warming than was previously anticipated.”

Many thanks to Julian Warmington, Associate Professor at BUFS, Busan University of Foreign Studies, for editing this news report.

Related

Climate Change: Paul Beckwith discusses the threat of methane
Dr. Malcolm Light interview on climate change: 'Extreme national emergency'
Special presentations on climate change and its effects by Dr. Guy McPherson



Thursday, September 18, 2014

Warm water flowing into Arctic Ocean

by Harold Hensel

For the first time in thousands of years, warm water is flowing into the Arctic Ocean. Warm water from the deep ocean is showing up on surface images. There is no way to put this into the context of 'normal.' Historic temperatures have kept the Arctic frozen on an even keel for thousands of years. Even if there was a 'natural cycle' it has been completely overridden by the astonishing amount of pollution that is going into the atmosphere.


Over 90 percent of Earth's energy imbalance has been going into the oceans, almost unnoticed by people keeping track of the temperatures in the atmosphere. The warmer ocean water is going through the Bering Strait and into the Chukchi Sea, Barents Sea, East Siberian Sea and worst of all, the Laptev Sea.

The Gakkel Ridge crosses the Arctic Ocean from Greenland to the Laptev Sea, see earlier post
There are methane hydrate concentrations in all of these areas up to 1,500 feet deep for miles and miles. There are fractures here that give mantel methane a route to the surface that have been safely sealed by ice. The hydrates and seals are thawing.

In 2013, huge amounts of methane erupted over the Gakkel Ridge and
the Laptev Sea
in October, with levels as high as 2662 ppb on November 9.
In 2014, levels over 2400 ppb were recorded on September 14, 15 and 16.

On the Greenland side, warm water is flowing into the Arctic from the Labrador, Greenland and Norway seas. The international SWERUSs-C3 expedition on the icebreaker Oden is recording 'mega flares' of methane. There are many factors involved in warming the Arctic Ocean, but warm water flowing into it is one of the worst.

Harold Hensel
Cedar Rapids

Thursday, September 4, 2014

State Of Extreme Emergency

by Malcolm Light

PRESIDENT OBAMA MUST DECLARE A STATE OF EXTREME NATIONAL EMERGENCY AND CEASE ORCHESTRATING A WAR WITH RUSSIA. HE MUST RECALL HIS ENTIRE ARMY AND NAVY PERSONNEL TO THE UNITED STATES TO BEGIN A MASSIVE CONVERSION OF THE US ENERGY SYSTEM TO SOLAR AND WIND POWER. THIS CONVERSION MUST RESULT IN ALL 600 COAL POWER STATIONS AND NUCLEAR STATIONS BEING COMPLETELY SHUT DOWN IN THE NEXT 5 TO 10 YEARS. ALL SURFACE TRANSPORT BOTH PRIVATE AND PUBLIC MUST BE ENTIRELY ELECTRIFIED AND AIR TRANSPORT CONVERTED TO METHANE OR HYDROGEN FUEL. IF THIS IS NOT DONE, HUMANITY WILL BE FACING TOTAL EXTINCTION IN AN ARCTIC METHANE FIRESTORM BETWEEN 2040 AND 2050.


The US and Canada must cut their global emissions of carbon dioxide by 90% in the next 10 to 15 years, otherwise they will be become an instrument of mass destruction of the Earth and its entire human population. Recovery of the United States economy from the financial crisis has been very unsoundly based by the present Administration on an extremely hazardous "all of the above" energy policy that has allowed continent wide gas fracking, coal and oil sand oil mining and the return of widespread drilling to the Gulf. Coast. This large amount of fossil fuel has to be transported and sold which has caused extensive spills, explosions and confrontations with US citizens over fracking and the Keystone XL pipeline. Gas fracking is in the process of destroying the entire aquifer systems of the United States and causing widespread earthquakes. The oil spills are doing the same to the surface river run off.

We are now facing a devastating final show down with Mother Nature, which is being massively accelerated by the filthy extraction of fossil fuels by US and Canada by gas fracking, coal and tar sand mining and continent wide bitumen transport. The United States and other developed nations made a fatal mistake by refusing to sign the original Kyoto protocols. The United States and Canada must now cease all their fossil fuel extraction and go entirely onto renewable energy in the next 10 to 15 years otherwise they will be guilty of planetary ecocide - genocide by the 2050's.

The volume transport of the Gulf Stream has increased by three times since the 1940's due to the rising atmospheric pressure difference set up between the polluted, greenhouse gas rich air above North America and the marine Atlantic Air. The increasingly heated Gulf Stream with its associated high winds and energy rich weather systems then flows NE to Europe where it recently pummeled Great Britain with catastrophic storms. Other branches of the Gulf Stream then enter the Arctic and disassociate the subsea Arctic methane hydrate seals on subsea and deep high - pressure mantle methane reservoirs below the Eurasian Basin- Laptev Sea transition. This is releasing increasing amounts of methane into the atmosphere producing anomalous temperatures, greater than 20°C above average. Over very short time periods of a few days to a few months the atmospheric methane has a global warming potential from 1000 to 100 times that of carbon dioxide.


There are such massive reserves of methane in the subsea Arctic methane hydrates, that if only a few percent of them are disassociated, they will lead to a jump in the average temperature of the Earth's atmosphere by 10°C and produce a "Permian" style major extinction event which will kill us all. The whole northern hemisphere is now covered by a thickening atmospheric methane global warming veil that is spreading southwards at about 1 km a day and it already totally envelopes the United States. A giant hole in the equatorial ozone layer has also been discovered in the west Pacific which acts like an elevator transferring methane from lower altitudes to the stratosphere where it already forms a dense equatorial global warming stratospheric band that is spreading into the Polar regions.


During the last winter, the high Arctic winter temperatures and pressures have displaced the normal freezing Arctic Air south into Canada and the United States producing never before seen, freezing winter storms and massive power failures. When the Arctic ice cap finally melts towards the end of next year, the Arctic sea will be aggressively heated by the sun and the Gulf Stream. The cold Arctic air will then be confined to the Greenland Ice cap and the hot globally warmed Arctic air with its methane will flow south to the United States to further heat up the Gulf Stream, setting up an anticlockwise circulation around Greenland. Under these circumstances Great Britain and Europe must expect even more catastrophic storm systems, hurricane force winds and massive flooding after the end of next year due to a further acceleration in the energy transport of the Gulf Stream. If this process continues unchecked the mean temperature of the atmosphere will rise a further 8° centigrade and we will be facing global deglaciation, a more than 200 feet rise in sea level rise and a major terminal extinction event by the 2050's.



Wednesday, August 13, 2014

Horrific Methane Eruptions in East Siberian Sea

A catastrophe of unimaginable propertions is unfolding in the Arctic Ocean. Huge quantities of methane are erupting from the seafloor of the East Siberian Sea and entering the atmosphere over the Arctic Ocean.


As the top image above shows, peak levels as high as 2363 ppb were recorded at an altitude of 19,820 ft (6041 m) on the morning of August 12, 2014. The middle image shows that huge quantities of methane continued to be present over the East Siberian Sea that afternoon, while the bottom image shows that methane levels as high as 2441 ppb were recorded a few days earlier, further indicating that the methane did indeed originate from the seafloor of the East Siberian Sea.

On August 12, 2014, peak methane levels at higher altitudes were even higher than the readings mentioned on above image. Levels as high as 2367 ppb were reached at an altitude of 36,850 ft (11,232 m). Such high levels have become possible as the huge quantities of methane that were released from the seafloor of the Arctic Ocean over the period from October 2013 to March 2014, have meanwhile descended to lower latitudes where they show up at higher altitudes.

Methane eruptions from the Arctic Ocean's seafloor helped push up mean global methane levels to readings as high as 1832 ppb on August 12, 2014.

Ironically, the methane started to erupt just as an international team of scientists from Sweden, Russia and the U.S. (SWERUS-C3), visiting the Arctic Ocean to measure methane, had ended their research.

Örjan Gustafsson describes part of their work: “Using the mid-water sonar, we mapped out an area of several kilometers where bubbles were filling the water column from depths of 200 to 500 m. During the preceding 48 h we have performed station work in two areas on the shallow shelf with depths of 60-70m where we discovered over 100 new methane seep sites.”

Örjan Gustafsson adds that “a tongue of relatively warm Atlantic water, with a core at depths of 200–600 m may have warmed up some in recent years. As this Atlantic water, the last remnants of the Gulf Stream, propagates eastward along the upper slope of the East Siberian margin, our SWERUS-C3 program is hypothesizing that this heating may lead to destabilization of upper portion of the slope methane hydrates.”

Schematics of key components of the Arctic climate-cryosphere-carbon system that are addressed by the SWE-C3 Program. a,b) Sonar images of gas plumes in the water column caused by sea floor venting of methane (a: slope west of Svalbard, Westbrook et al., 2009; b: ESAO, Shakhova et al., 2010, Science). c) Coastal erosion of organic-rich Yedoma permafrost, Muostoh Island, SE Laptev Sea. d) multibeam image showing pockmarks from gas venting off the East Siberian shelf. e) distribution of Yedoma permafrost in NE Siberia. f) Atmospheric venting of CH4, CO2. (SWERUS-C3)
Örjan Gustafsson further adds that SWERUS-C3 researchers have on earlier expeditions documented extensive venting of methane from the subsea system to the atmosphere over the East Siberian Arctic Shelf.

In 2010, team members Natalia Shakhova and Igor Semiletov estimated the accumulated methane potential for the Eastern Siberian Arctic Shelf alone to be as follows:
- organic carbon in permafrost of about 500 Gt;
- about 1000 Gt in hydrate deposits; and
- about 700 Gt in free gas beneath the gas hydrate stability zone.

Back in 2008, Shakhova et al. wrote a paper warning that “we consider release of up to 50 Gt of predicted amount of hydrate storage as highly possible for abrupt release at any time.”

Last year, a team of researchers including Professor Peter Wadhams calculated that such a 50 Gt release would cause global damage with a price-tag of $60 trillion.

As Prof Wadhams explains in the video below: “We really have no choice except to seriously consider the use of geoengineering.”



Sea surface temperatures as high as 18.8°C are now recorded at locations where warm water from the Pacific Ocean is threatening to invade the Arctic Ocean.

At the same time, huge amounts of very warm water are carried into the Arctic Ocean by the Gulf Stream through the North Atlantic. The image below illustrates how the Gulf Stream brings very warm water to the edge of the sea ice.

Waters close to Svalbard reached temperatures as high as 62°F (16.4°C) on July 29, 2014 (green circle). Note that the image below shows sea surface temperatures only. At greater depths (say about 300 m), the Gulf Stream is pushing even warmer water through the Greenland Sea than temperatures at the sea surface.

Since the passage west of Svalbard is rather shallow, a lot of this very warm water comes to the surface at that spot, resulting in an anomaly of 11.1°C. The high sea surface temperatures west of Svalbard thus show that the Gulf Stream can carry very warm water (warmer than 16°C) at greater depths and is pushing this underneath the sea ice north of Svalbard. Similarly, warm water from greater depth comes to the surface where the Gulf Stream pushes it against the west coast of Novaya Zemlya.


[ click on image to enlarge ]
As Malcolm Light writes in an earlier post: The West Spitzbergen Current dives under the Arctic ice pack west of Svalbard, continuing as the Yermak Branch (YB on map) into the Nansen Basin, while the Norwegian Current runs along the southern continental shelf of the Arctic Ocean, its hottest core zone at 300 metres depth destabilizing the methane hydrates en route to where the Eurasian Basin meets the Laptev Sea, a region of extreme methane hydrate destabilization and methane emissions.

The images below give an impression of the amount of heat transported into the Arctic Ocean.



The image below gives an idea how methane eruptions from the seafloor of the Arctic Ocean could unfold over the coming decades. For more on this image, see this post and this page.


As said, the situation is dire and calls for comprehensive and effective action, as discussed at the Climate Plan blog at climateplan.blogspot.com and as illustrated by the image below.




Monday, July 21, 2014

Methane rising through fractures

by Harold Hensel



Methane is colorless and odorless and it is right above us in the atmosphere.

In addition to other sources, methane has traveled from the Arctic and has blanketed most of the Northern Hemisphere.

The well-known sources are methane hydrates from the Arctic Ocean floor and methane coming from thawing permafrost.

There is also another less well-known source. During the geologic history of the Arctic area, tectonic plates have spread, crashed into each other and subducted under one another. Geologists call the Arctic a tectonic plate junkyard. There are numerous fractures in the earth's crust there.

A quote from earth scientist Malcolm Light: ‘Mantle methane formed from the reduction of oceanic carbonates by water in the presence of iron (II) oxides buried to depths of 100 km to 300 km in the Asthenosphere and at temperatures above 1200°C.’ This is a nonorganic source of methane formed near the earth's mantel. Katey Walter Anthony from the University of Alaska calls it geologic methane.

Vast reservoirs of methane have been created by chemical reactions and stored near the mantle under a lot of pressure for millennia.

The methane has had a route to the surface through the fractures in the earth's crust, but the fractures have been sealed over by ice. Now for the first time in human history, the ice sealing the fractures is thawing. Methane is rising through the fractures and into the atmo­sphere. This methane has migrated to the United States and is over us.




Harold Hensel, 
Cedar Rapids.
Earlier published as 
Letter to the Editor 
Cedar Rapids Gazette 
(without images)


Related

- Study: Geologic methane seeping from thawing cryosphere - by Marmian Grimes
http://uafcornerstone.net/study-geologic-methane-seeping-from-thawing-cryosphere

- Focus on Methane - by Malcolm Light
http://arctic-news.blogspot.com/2014/07/focus-on-methane.html

- Arctic Atmospheric Methane Global Warming Veil - by Malcolm Light, Harold Hensel and Sam Carana

- Mantle Methane - by Malcolm Light



Thursday, March 6, 2014

Presentation by Guy McPherson

Presentation by Guy McPherson, February 2014, Traditions Cafe, Olympia WA.



View the video of the presentation below:





Related

- Tour by Guy McPherson along the coasts of Oregon and Washington
http://guymcpherson.com/2014/03/presenting-in-olympia-washington

- Earth is on the edge of runaway warming
http://arctic-news.blogspot.com/2013/04/earth-is-on-the-edge-of-runaway-warming.html

- Arctic Methane Impact
http://arctic-news.blogspot.com/2013/11/arctic-methane-impact.html

- CO2 growth highest on record
http://arctic-news.blogspot.com/2014/02/co2-growth-highest-on-record.html