Permafrost Loss Greater Threat Than Deforestation
Pierre Bezukhov writes "Emissions from thawing permafrost may contribute more to global warming than deforestation this century, according to commentary in the journal Nature. Arctic warming of 7.5 degrees Celsius (13.5 degrees Fahrenheit) this century may unlock the equivalent of 380 billion tons of carbon dioxide as soils thaw, allowing carbon to escape as CO2 and methane, University of Florida and University of Alaska biologists wrote today in Nature. Two degrees of warming would release a third of that, they said. The Arctic is an important harbinger of climate change because the United Nations calculates it's warming at almost twice the average rate for the planet. The study adds to pressure on United Nations climate treaty negotiators from more than 190 countries attending two weeks of talks in Durban, South Africa that began Nov. 28."
Based on their inaction and their stated desire for inaction: Canada, Russia, and the USA.
If clathrate gun hypothesis is correct, the things may become interesting during our lifetime (which may be a shorter one).
Questions raise, answers kill. Raise questions to stay alive.
Permafrost makes it harder to dig, hurting the economy and killing jobs. That's why everyone hates it.
To offset political mods, replace Flamebait with Insightful.
Arctic temperatures are *not* rising. The data is flawed because the sensors are all set up near Santa's Village, which has been experiencing massive growth over the past few decades as increasing numbers of spoiled kids get more gifts each year. The resulting urban heat island effect (amplified by primitive and inefficient elven HVAC technology) has severely skewed all the Arctic numbers, and the rising temps are just an illusion.
Because 1. Man is influencing the climate, 2. Most of this change is going to be bad, 3. There is no political or social will to change our current behavior, and 4. Once shit hits the ecological fan, those with resources will shield themselves from the effects and those without resources will be fucked.
If Slashdot were chemistry it would look like this:Cadaverine
Doesn't this mean that the sterile wasteland that is permafrost would also come back to life again? I thought more life, especially plant life, was a good thing?
One of the commenters mentioned marshy bog. Isn't that one of the precursors of peat and coal?
As the globe continues to warm, eventually the Northwest Passage will be a viable route for less ice-hardy vessels more times out of the year, providing economic benefit for those who could utilize the shipping routes. I imagine there are lobbies that would love to see this happen. This is speculation, for I do now know if people actively encourage warming. Looking at the CO2 data and its positive correlation to the mean global temperature increase, it seems we may see that route in our lifetime.
Also as the permafrost disappears, another side affect is a cascading result in the loss of surface ice/snow pack. As the surface area of the snow/ice/arctic shelf shrinks, the Earth's regional albedo will be reduced, ie there will be less radiational cooling and more energy absorbed by the surface. Cycles such as this create feedback loops in the environment that cause these affects to amplify. Lower albedo -> less permafrost/snow/ice/glacier coverage -> more heat -> lower albedo -> ad inifinitum.
I am not a meteorologist, but based on some cursory research these seem to be realistic eventualities.
'We are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.' RPF
If nothing else, soft-science and government types get a taxpayer paid trip to South Africa for 2 weeks. Do you think they really want to FIX global warming?
I want to delete my account but Slashdot doesn't allow it.
The study adds to pressure on United Nations climate treaty negotiators from more than 190 countries attending two weeks of talks in Durban, South Africa that began Nov. 28.
I would agree with you, except that we can expect to see exactly the same thing that came out of the last UN climate summit... And the one before that. And the Kyoto accords.
Namely, nothing. Politicians act on a scale measured by the next election cycle (and can't even manage that lately). I have absolute confidence that our "leaders" will do nothing whatsoever about climate change until they get to feign surprise that all their precious coastal cities seem to have started taking on water - At which point, they'll blame the other party and still do nothing.
We have calculated the one-time pulse of CO2 released by thawing. Will the newly arable land not host new carbon absorbing growth into the indefinite future? Perhaps that's how all that carbon got stored there in the first place.
I wonder if this is one of the mechanisms that prevented the Earth from becoming Venus during the last 800 million years of Nitrogen/Oxygen atmosphere. Lord knows I'm left to wonder; I have yet to read a single story about any feedback mechanism that isn't hellbent on destroying the planet.
Think about Alaska, think about the size of Alaska, now, cover it in a layer of mossy stuff several feet thick. That mossy stuff is muskeg, and if you've ever stepped in a soft spot in the muskeg and sunk up to your hip in the muck, you can easily imagine the whole thing decomposing into methane when it gets warm.
It doesn't cover all of Alaska, but then, it's not only in Alaska, it's also all over Canada and Siberia.
Oh well, the polar bears didn't drown, the Antarctic didn't defrost, New York hasn't been inundated, so now we're down to defrosting the Arctic? Based on some bogus "calculation" by the known frauds at the UN. Yawn, wake me up when the world ends.
Go ahead and stay home from school. The world needs ditch-diggers too.
Hard digging is good for jobs. :)
Help stamp out iliturcy.
Oh piss off about Germany and its supposed superiority over America.
1) Germany is about the size of Montana, just one of 50 American states, into which 80 million people are crammed. America's national parks (not including numerous state parks), alone, completely undeveloped, are nearly the size of Germany. So, right off the wheel, in terms of sheer size, and getting around, America is a much more rural country than Germany is.
2) Germany's standard of living is based on an export driven economy that essentially relies on the fact that first the mark and now the euro are way overvalued relative to the us dollar, and that the USA picks up the tab for ensuring that Germany even has access to oil by virtue of American military power in the persian gulf.
3) Germany has a declining population - if Germany was so great, why do they have a forecast net population decline? By contrast, the USA has a population that is growing the fastest out of any of the NATO nations.
4) German corporations have a -lower- tax rate than American ones do. Oops, did I say that? Also, German laws are absolutely brutal for debt collection compared to American ones. If you, in America, blow off paying a loan bank, you get a bunch of angry letters and pissy phone calls and for the most part that's really all about they can do to you. In Germany, they can just come and start taking your shit away.
5) The German educational system essentially creates a class system by picking kids early on to go to university. In America, anyone whose willing to take out a student loan and do the work can find some place to get a degree, and all kids are educated not to be tradesman, but to be college bound.
6) I'll take Kentucky bourbon over German beer, American NFL football and MLB baseball over stupid soccer.
7) Speaking of taxed to the hilt, Germans are actually more in debt per capita than Americans are, and the American financial picture improves rather dramatically when the Bush tax cuts expire, and the budget sequesters kick in.
http://en.wikipedia.org/wiki/List_of_countries_by_external_debt
8) Germans talk of a United Europe but bitch because the Greeks can't get their shit together. In America, we talk about a United States, and most Americans are not even aware of how federal dollars get redistributed all over the country for rural and urban development. (in essence, southerners wishing for reducing federal spending need to be periodically reminded that most federal spending is actually on them...)
9) Americans have way better food. Want cheap industrial food, got that. Want fresh cuisine representative of every nation on the planet? Got that too.
And then, best of all, there's this:
http://www.insideline.com/cadillac/cts-v/2009/2009-cadillac-cts-v-sets-nurburgring-record.html
This is my sig.
Let's see - France has better looking women, better food, better wine, better movies and better art, and has been a world leader in aeronautics since Bleriot through Arianespace and Bleriot. Their mintel predated and pioneered the idea of a pervasive online service, they've made tremendous contributions in math. And even though they took it on the chin from Germany in World War II, they had incredible artillery and aircraft in World War I, and previously, pioneered everything in engineering from steel warship construction in the La Gloire, and finally, they gave us mayonaisse.
This is my sig.
If you had ever been really, truly cold, then you would understand why the folk in Canada and Russia could really give a damn that global warming is flooding your Florida swamp real-estate.
So, without further ado: The Cremation of Sam McGee.
Help stamp out iliturcy.
Apropos "corduroy roads", corduroy fabric in Danish is Jernbanefløjl, which translated literally means - railway velvet! :)
I never thought of that! MightyMartian has a valid point that valuable, difficult-to-manufacture long chain hydrocarbons are being squandered to produce combustion.
That's the same way I feel about sequestering gold. This non-tarnish metal is an extremely valuable manufacturing commodity. And diamonds, the hardest substance known to man, are another stupidly sequestered resource.
Homo sapiens are dingbat dumb.
This was hypothesised as an effect of the green house effect, that would in itself accelerate the green house effect, in the late 1970's (or even earlier, I'm to young to remember).
The first reports (from Siberia and Scandinavia) that the theory of what would happen had become reality, came in the early 1990's.
That the loss of permafrost have become a larger accelerator of the green house effect then deforestation, has been known for some years, at least on a theoretical level.
So, another study confirms something everybody already knew (except perhaps US scientists, they are always 30+ years behind, my guess is that this is because of political reasons and a xenophobia that isolate them from the rest of the world).
TFA is a Bloomberg summary of a Nature commentary about a survey among permafrost scientists, and the main article isn't even linked by Nature. If this was just an excuse to fire up the global warming flame thread, go for it. However, the same issue of Nature has a far more important (for global change) paper that dismisses the CLAW hypothesis in which dimethyl sulfate released from marine organisms is hugely important for creating clouds. In looking for fluff, the meat got missed.
It is not like you can tell a country to make some changes so the ice stops to melt, this one is out of our control.... are we going to send more ice makers up north to continue freezing the water and ice caps so as they retain all their gases???
But won't thawed permafrost make it easier for more trees (and other plant life) to grow and sequester carbon? The Earth has tremendous balancing mechanisms. It's been WAAAY further out of balance before in its history and those very strong protection mechanisms kick in and push it back the other way. Obviously they DO have limits, but we're nowhere near pushing those. The scope of our pollution doesn't even begin to compare with some of the previous events on the Earth. Pre-human climate history is VERY interesting reading!
I propose we change the name to semi-permafrost.
Be happy to ship up alligators and crocs to fill the swamp after the big thaw.
I guess you didn't see Suzuki's scare campaign come out today
And I guess, in your ardour to expose Suzuki's "scare campaign" you didn't read or comprehend the comment "Arctic temperatures are *not* rising ..." which you originally, and so impertinently, responded to. Eh?
Better to be despised for too anxious apprehensions, than ruined by too confident a security. --Edmund Burke
I'm not sure the headline statement is correct, they state the figure as "the equivalent of 380 billion tons of carbon dioxide" which presumably takes into account that some of this is released as methane. Deforestation currently releases 5.8 billion tons a year so in this century it will surely release 580 billion tons at current rates? (source: Deforestation a Disaster for CO2 Emissions)