Archive for the ‘Climate Change’ Category

Climate outcome ‘hangs on coal’

Sunday, December 28th, 2008

If growth in carbon dioxide emissions is to be constrained and even reversed then the world cannot afford a coal renaissance, scientists have said.

Some commentators have argued that falling reserves of oil and gas will automatically limit CO2’s rise.

But at an American Geophysical Union meeting, researchers said reserves of coal dwarfed those of other fuels.

It was even possible oil’s demise could trigger an acceleration in emissions through more coal use, they added.

“We can replace oil with liquid fuels derived from coal,” said Ken Caldeira from the Carnegie Institution at Stanford University in California.

“But these liquid fuels emit even more carbon dioxide than oil, so the end of oil can mean an increase in coal and even more carbon dioxide emissions to the atmosphere, and even more rapid onset of dangerous climate change.”

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Changes ‘amplify Arctic warming’

Sunday, December 28th, 2008

Scientists say they now have unambiguous evidence that the warming in the Arctic is accelerating.

Computer models have long predicted that decreasing sea ice should amplify temperature changes in the northern polar region.

Julienne Stroeve, from the US National Snow and Ice Data Center, told a meeting of the American Geophysical Union that this process was under way.

Arctic ice cover in summer has seen rapid retreat in recent years.

The minimum extents reached in 2007 and 2008 were the smallest recorded in the satellite age.

“The sea ice is entering a new state where the ice cover has become so thin that no matter what happens during the summer in terms of temperature or circulation patterns, you’re still going to have very low ice conditions,” she told the meeting.

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Thinking about a thousand-year depression

Tuesday, December 16th, 2008

– An excellent piece from The Automatic Earth; a Blog I’ve just started following.

= = = = = = = = = = = = =

Cyclical terms like “recession” and “depression” are looking less appropriate by the day. It’s like calling the period between the fall of Rome and the Renaissance a “depression”.

I know the our situation is vastly different from the state of the world in Roman times, but the idea that we could be on the brink of a fundamental reset of civilization is intriguing, to say the least.

I’ve been convinced for several years that we are looking at the convergence of a set of wicked interlocking global problems — ecological problems (climate chaos, the death of the oceans, fresh water shortages etc.), energy shortages due to fossil fuel depletion, and overpopulation with the resulting pressure on the global food supply. This convergence is happening under the umbrella of the current global financial collapse that constrains our ability to respond to any of these problems individually, let alone any further problems that might emerge from interactions between them.

This unfortunate collision makes the future of our civilization very murky indeed. Writers like James Howard Kunstler, John Michael Greer, Carolyn Baker and Sharon Astyk (along with people like Stoneleigh and Ilargi at The Automatic Earth) have been warning about the possibility of a generalized, unrecoverable collapse of modern civilization for a while now. They have generally been derided by the mainstream as millennialist prophets of doom — driven more by their own subconscious fears and dark desires, their research full of confirmation bias.

The events unfolding around us now, however, cast their optimistic mainstream critics in a somewhat different light. None of them — even the Roubinis and Krugmans – have fully appreciated the severity of the world’s financial predicament. Their comforting bromides (and even their more pessimistic utterances) have been overwhelmed by events on a weekly basis. It has become clear that for all their careful analysis of trunks and tails, nobody truly understood the shape of the entire elephant.

This evident failure of comprehension brings their entire analysis into disrepute. And that should make us ask – if they failed to comprehend the underpinnings of a calamity in their own domain, what does that say about the possibility that they also failed to understand the dangers being trumpeted by the doomers they have derided?

After all, we are seeing the same outcome in the climate crisis as in the financial one – the trends are uniformly negative, and are unfolding much faster than the professionals in either field predicted. There are new signs from world bodies like the International Energy Agency that the same situation is developing with respect to the world’s oil supply – the more pessimistic members of the Peak Oil crowd appear to be heading for vindication.

So, following a “major, rapid contraction” (aka collapse), could our civilization end up staying on the mat, unable to rise from the ashes of our former glory? That’s unknowable of course, but hardly inconceivable. Several factors give that speculation some foundation.

The first confounding factor is the spectre of irreversible climate change. That could irreparably damage the world’s food production capacity through shifts in rainfall and the reduction of snow and glacial cover that supplies much of the world’s fresh water for agriculture.

The second factor is the permanent depletion of the compact, high-density, transportable energy supply represented by fossil fuels. We’re putting a lot of effort into developing electrical alternatives, of course. There are two major challenges in the way, though. The first is the relative infancy of the industry, and the fact that it will require both capital and fossil fuels to enable its continued growth. The second longer term problem is that the use of electricity requires a higher level of technology in the infrastructure needed to manufacture, distribute, store and convert it into work. This may not seem like much of a a problem today, but if our global industrial civilization goes into a decline, growing parts of the world may find the maintenance of such infrastructure increasingly difficult.

A third factor that may get in the way of recovery is the depletion of easily-recoverable resources such as metals. The decline in the average quality of various ores being mined today is well documented, and is likely to continue. While recycling can recover much of the metal currently discarded as waste, recycling facilities capable of producing enough output to feed our civilization’s needs do not yet exist. They would face the same hurdles as the build-out of electrical supplies I described above.

You might think that such a situation will take so long to develop that we will be able to address the situation before it gets quite that dire.

One consideration that works against that hope is that human beings are not, for all their cleverness, fully rational creatures. Research has shown that most of our “rational” decisions are made at a deeply unconscious level, to be dressed up with rational justifications only upon their emergence into the conscious mind some time later. The truth of this proposition can be seen all around us in the competition between environmental remediation and economic imperatives, in the obstruction of alternative energy development, in our repeated creation of financial bubbles — in all the myriad ways in which we as a society work tirelessly against our own best interests as individuals and as a species.

Even worse, events have recently shown a terrifying ability to outstrip our expectations, in both speed and severity. We may not have nearly as much time left as we think. A lack of time coupled with an inability to respond rationally (or even to accept the evidence of our eyes) does not bode well for the future of this civilization.

It’s conceivable that our current civilization will never regain its feet after this storm has burst upon us. We will endure as a species no matter what happens, of course, and it’s even probable that we will rise to new heights. It’s also quite possible that the rebirth of this Phoenix will take a long, long time and that those new heights will be unrecognizable to someone raised in today’s world of 401(k)’s, Credit Default Swaps, automobiles and gigantic concrete cities.

– To the original:

– Research thanks to Kael for this.

1st commercial ship sails through Northwest Passage

Sunday, November 30th, 2008

– Humanity has attempted to traverse across the top of Canada and Alaska via the Northwest Passage for hundreds of years and many men lost their lives in the attempts until is was first successfully done in 1906.   The ice has always made it nearly impossible – until Global Climate Change.  

– Folks down in the more temperate climes may think Global Climate Change is just a rumor.   But, up in the far north, it is anything but.   And it’ll be coming to your neighborhood soon as well.

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The Canadian Coast Guard has confirmed that in a major first, a commercial ship travelled through the Northwest Passage this fall to deliver supplies to communities in western Nunavut.

The MV Camilla Desgagnés, owned by Desgagnés Transarctik Inc., transported cargo from Montreal to the hamlets of Cambridge Bay, Kugluktuk, Gjoa Haven and Taloyoak in September.

“We did have a commercial cargo vessel that did the first scheduled run from Montreal, up through the eastern Arctic, through the Northwest Passage to deliver cargo to communities in the west,” Brian LeBlanc of the Canadian Coast Guard told CBC News.

“That was the first — that I’m aware of anyway — commercial cargo delivery from the east through the Northwest Passage.”

More…

One Shot Left

Friday, November 28th, 2008

The latest science suggests that preventing runaway climate change means total decarbonisation.

By George Monbiot. Published in the Guardian 25th November 2008

George Bush is behaving like a furious defaulter whose home is about to be repossessed. Smashing the porcelain, ripping the doors off their hinges, he is determined that there will be nothing worth owning by the time the bastards kick him out. His midnight regulations, opening America’s wilderness to logging and mining, trashing pollution controls, tearing up conservation laws, will do almost as much damage in the last 60 days of his presidency as he achieved in the foregoing 3000(1).

His backers – among them the nastiest pollutocrats in America – are calling in their favours. But this last binge of vandalism is also the Bush presidency reduced to its essentials. Destruction is not an accidental product of its ideology. Destruction is the ideology. Neoconservatism is power expressed by showing that you can reduce any part of the world to rubble.

If it is now too late to prevent runaway climate change, the Bush team must carry much of the blame. His wilful trashing of the Middle Climate – the interlude of benign temperatures which allowed human civilisation to flourish – makes the mass murder he engineered in Iraq only the second of his crimes against humanity. Bush has waged his war on science with the same obtuse determination with which he has waged his war on terror.

Is it too late? To say so is to make it true. To suggest that there is nothing that can now be done is to ensure that nothing is done. But even a resolute optimist like me finds hope ever harder to summon. A new summary of the science published since last year’s Intergovernmental Panel report suggests that – almost a century ahead of schedule – the critical climate processes might have begun(2).

Just a year ago the Intergovernmental Panel warned that the Arctic’s “late-summer sea ice is projected to disappear almost completely towards the end of the 21st century … in some models.”(3) But, as the new report by the Public Interest Research Centre (PIRC) shows, climate scientists are now predicting the end of late-summer sea ice within three to seven years. The trajectory of current melting plummets through the graphs like a meteorite falling to earth.

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1953 Popular Mechanics: Growing Blanket of Carbon Dioxide Raises Earth’s Temperature

Friday, November 21st, 2008

The Wayback Machine– First, it was looking back to the 1992 World Scientist’s Warning to Humanity.  

– Then, it was turning the calender pages back to 1979 and a meeting held at Woods Hole at which a paper entitled, “The Carbon Dioxide Problem: Implications for Policy in the Management of Energy and Other Resources“.

– Now, we’ll turn the dial on the ‘Wayback Machine‘ all the way back to 1953 and an article in the Popular Mechanics Magazine of the day.

– Truly, this information has been around for awhile.

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– To Climate Progress and the 1953 article…

Drought in southern Australia declared ‘worst on record’

Wednesday, November 19th, 2008

If you want to know what the U.S. southwest faces in the coming decades if we don’t reverse greenhouse gas emissions trends quickly, just look to Australia:

David Jones, the head of climate analysis at the Bureau of Meteorology, said the drought affecting south-west Western Australia, south-east South Australia, Victoria and northern Tasmania “is now very severe and without historical precedent”.

Dr Jones said Victoria had had “the driest multi-year period on record, but also by far the hottest….”

He said temperatures were running at about one degree “above any previous comparable drought. That is substantially hotter, and that one degree is a global warming signal.”

He said the data suggests that for every one degree of warming, there is a 15 per cent decline in run-off, or river flow, in the Murray Darling Basin….

He said a similar drying pattern had been observed in Europe’s Mediterranean, and the south-west in the USA….

The highlighted point is key. Previously, droughts around the world were either cold-whether droughts or warm-weather droughts. In the future, virtually all droughts will be hot weather droughts, which are obviously the worst kind.

He said the current dry was at the extreme end of what the climate models had predicted.

Most of the major predicted climate impacts the planet is now experiencing are at the extreme end of what the models had predicted (see “Are Scientists Overestimating — or Underestimating — Climate Change, Part I“).

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A 1979 Climate Warning

Wednesday, November 12th, 2008

– A while ago, I wrote a piece about the World Scientists Warning to Humanity 1992.   Now, DotEarth has come up with a similar warning dating back to 1979 which I’ve copied and linked to, below.

– And for those of you who can date your music impressions way back to the 1960’s, how about “Spirit – Twelve Dreams of Dr. Sardonicus – Nature’s Way“.   Even back then, I could hear what they were saying:  “It’s nature’s way of telling you; dying trees.”

– It’s not like the writing about the environment hasn’t been on the wall for those who were looking.

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The Cassandra Files: A 1979 Climate Warning

Few things are sadder than looking back and contemplating “what might have been.” It’s certainly not the kind of thing most people want to do at a birthday party.

But that was what happened on Oct. 24 when the Woods Hole Research Center in Woods Hole, Mass., marked the 80th birthday of its founder, the biologist and ecologist George Woodwell, with a symposium on “Ecology and the Public Good.”

One participant, James Gustave Speth, passed out copies of a report he received in July 1979, when he was chairman of the White House Council on Environmental Quality. Its title was “The Carbon Dioxide Problem: Implications for Policy in the Management of Energy and Other Resources.” Its lead author was Dr. Woodwell, then the director of the Ecosystems Center at the Marine Biological Laboratory. His coauthors were Gordon J. MacDonald, Roger Revelle and Charles D. Keeling. All were eminent; Dr. Keeling was the first to chart increased concentrations of carbon dioxide in the atmosphere — a rise known today as the Keeling curve. (Click here to download a PDF of the report.)

The report starts off with a blunt warning: “Man is setting in motion a series of events that seem certain to cause a significant warming of world climates over the next decades unless mitigating steps are taken immediately.” It adds, “ Enlightened policies in the management of fossil fuels and forests can delay or avoid these changes, but the time for implementing the policies is fast passing.”

In a forward he wrote for the reprinted report, Mr. Speth, now the dean of the Yale School of Forestry and Environmental Science, tells how the group of scientists prepared it for the White House, and how the Carter administration asked the National Academy of Sciences for guidance on its grim conclusions. While factors like the possible climate buffering influence of the oceans are imperfectly understood, the academy panel said, “if carbon dioxide continues to increase, the study group finds no reason to doubt that climate changes will result and no reason to believe that these changes will be negligible.”

More…

– Thanks to Dot Earth

– This article is from the NY Times and they insist that folks have an ID and a PW in order to read their stuff. You can get these for free just by signing up. However, a friend of mine suggests the website bugmenot.com :arrow: as an alternative to having to do these annoying sign ups. Check it out. Thx Bruce S. for the tip.

The nature crunch will be worse

Wednesday, November 12th, 2008

When humanity touches its ecological limits, the current financial crisis will pale in comparison. It’s time to rethink our catastrophic environmental trajectory, writes George Monbiot.

This is nothing. Well, nothing by comparison to what’s coming. The financial crisis for which we must now pay so heavily prefigures the real collapse, when humanity bumps against its ecological limits. As we goggle at the fluttering financial figures, a different set of numbers passes us by.

On October 10, Pavan Sukhdev, the Deutsche Bank economist leading a European study on ecosystems, reported that we are losing natural capital worth between US$2 trillion and US$5 trillion every year as a result of deforestation alone. The losses incurred by the financial sector (by mid-October) amounted to between US$1 trillion and $1.5 trillion. Sukhdev arrived at his figure by estimating the value of the services — such as locking up carbon and providing fresh water — that forests perform, and calculating the cost of either replacing them or living without them. The credit crunch is petty when compared to the nature crunch.

The two crises have the same cause. In both cases, those who exploit the resource have demanded impossible rates of return and invoked debts that can never be repaid. In both cases, we denied the likely consequences. I used to believe that collective denial was peculiar to climate change. Now I know that it’s the first response to every impending dislocation.

Britain’s prime minister, Gordon Brown, for instance, was as much in denial about financial realities as any toxic-debt trader. In June 2007, he boasted that 40% of the world’s foreign equities were traded in London. The financial sector’s success had come about, he said, partly because the government had taken “a risk-based regulatory approach”. In the same hall three years before, as chancellor of the exchequer, he pledged that “in budget after budget, I want us to do even more to encourage the risk takers”. Can anyone, surveying this mess, now doubt the value of the precautionary principle?

Ecology and economy are both derived from the Greek word oikos — a house or dwelling. Our survival depends on the rational management of this home: the space in which life can be sustained. The rules are the same in both cases. If you extract resources at a rate beyond the level of replenishment, your stock will collapse. That’s another noun that reminds us of the connection. The Oxford English Dictionary gives 69 definitions of “stock”. When it means a fund or store, the word evokes the trunk — or stock — of a tree, “from which the gains are an outgrowth”. Collapse occurs when you prune the tree so heavily that it dies. Ecology is the stock from which all wealth grows.

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Greenland ice loss soars: Bad for you, great for bottled water biz

Sunday, October 26th, 2008

A new study in Geophysical Research Letters (subs. req’d) led by the Jet Propulsion Laboratory finds:

… the ice sheet was losing 110 ± 70 Gt/yr [billion tons/year] in the 1960s, 30 ± 50 Gt/yr or near balance in the 1970s–1980s, and 97 ± 47 Gt/yr in 1996 increasing rapidly to 267 ± 38 Gt/yr in 2007.

How much is 267 billion metric tons of water? It’s enough to supply the city of Los Angeles with fresh water for more than 50 years. Hmm. That gives me — or at least the Greenland Home Rule government — an idea.

Yes, why should all that water only go to submerging the great coastal cities of the world when (a tiny fraction of) it could go to slaking the thirst of all the people who live in the great cities of the world that don’t get submerged.

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