Archive for the ‘Climate Change’ Category

Yellow River

Thursday, May 15th, 2008

Bitter Waters

Can China save the Yellow—its Mother River?

Not a drop of rain has fallen in months, and the only clouds come from sandstorms lashing across the desert. But as the Yellow River bends through the barren landscape of north-central China, a startling vision shimmers on the horizon: emerald green rice fields, acres of yellow sunflowers, lush tracts of corn, wheat, and wolfberry—all flourishing under a merciless sky.

This is no mirage. The vast oasis in northern Ningxia, near the midpoint of the Yellow River’s 3,400-mile journey from the Plateau of Tibet to the Bo Hai sea, has survived for more than 2,000 years, ever since the Qin emperor dispatched an army of peasant engineers to build canals and grow crops for soldiers manning the Great Wall. Shen Xuexiang is trying to carry on that tradition today. Lured here three decades ago by the seemingly limitless supply of water, the 55-year-old farmer cultivates cornfields that lie between the ruins of the Great Wall and the silt-laden waters of the Yellow River. From the bank of an irrigation canal, Shen gazes over the green expanse and marvels at the river’s power: “I always thought this was the most beautiful place under heaven.”

But this earthly paradise is disappearing fast. The proliferation of factories, farms, and cities—all products of China’s spectacular economic boomis sucking the Yellow River dry. What water remains is being poisoned. From the canal bank, Shen points to another surreal flash of color: blood-red chemical waste gushing from a drainage pipe, turning the water a garish purple. This canal, which empties into the Yellow River, once teemed with fish and turtles, he says. Now its water is too toxic to use even for irrigation; two of Shen’s goats died within hours of drinking from the canal.

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Natural changes pinned to warming

Thursday, May 15th, 2008

Major changes in the Earth’s natural systems are being driven by global warming, according to a vast analysis.

Glacier and permafrost melting, earlier spring-time, coastal erosion and animal migrations are among the observations laid at the door of man-made warming.

The research, in the journal Nature, involves many scientists who took part in last year’s Intergovernmental Panel on Climate Change (IPCC) report.

It links warming and natural impacts on a tighter regional scale.

Changes in the Earth’s physical and biological systems since at least 1970 are seen in regions which are known to be warming, it concludes.

The researchers assembled a database including more than 29,500 records that documented changes seen across a wide range of natural phenomena, such as:

  • the earlier arrival of migratory birds in Australia
  • declining krill stocks around Antarctica
  • earlier break-up of river ice in Mongolia
  • genetic shift in the pitcher plant mosquito in North America
  • declining productivity of Lake Tanganyika
  • melting Patagonian ice-fields

“Since 1970, there’s been about 0.5C, 0.6C of warming – that’s the global average,” said Cynthia Rosenzweig from Nasa’s Goddard Institute for Space Studies (Giss) in New York.

“And look at all the effects this relatively low amount of warming has had.

“It reveals the sensitivity to relatively low amounts of warming in many physical and biological systems,” she told BBC News.

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For the Sundarbans, time is running out

Thursday, May 15th, 2008

Rising sea levels threaten to flood many of the islands in the broad and fertile Ganges delta, leading to environmental disaster and a refugee crisis for India and Bangladesh

Dependra Das stretches out his arms to show his flaky skin, covered in raw saltwater sores. His fingers submerged in soft black clay for up to six hours a day, he spends his time frantically shoring up a crude sea dike surrounding his remote island home in the Sundarbans, the world’s largest delta.

Alongside him, across the beach in long lines, the villagers of Ghoramara island, the women dressed in purple, orange and green saris, do the same, trying to hold back the tide.

For the islanders, each day begins and ends the same way. As dusk descends, the people file back to their thatched huts. By morning the dike will be breached and work will begin again. Here in the vast, low-lying Sundarbans, the largest mangrove wilderness on the planet, Das, aged 70, is preparing to lose his third home to the sea in as many years. Here, global warming is a reality, not a prediction.

Over the course of a three-day boat trip through the Sundarbans, The Observer found Das’s plight to be far from unique. Across the delta, homes have been swept away, fields ravaged by worsening monsoons, livelihoods destroyed. Events confirm what experts have been warning: that the effects of global warming will be most severe on those who did the least to contribute to it and can least afford measures to adapt or save themselves. For these islanders, building clay walls is their only option.

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Climate change deniers – Grrr

Thursday, May 15th, 2008

– For whatever reasons, there are folks around who spend all their time trying to convince the rest of us that Global Climate Change is not happening or, if it is, that it is not humanity’s fault.

– And all of this in spite of strong and unequivocal assertions by the f0lks best positioned to know what’s going on. I.e., the professional global scientific community of climate scientists who are telling us IT IS REAL AND WE ARE CAUSING IT.

– The climate denialists are forever putting up straw men arguments and bogus alternatives (cosmic rays, anyone?) and as soon as their argument of the day is demolished, they move on to their next amazing claim. Interestingly, once you go digging, you find many of them have financial links back to big oil and coal.

– Recently, these folks put out a paper advertising itself as a list of 500 scientists who disagree with the Global Climate Change hypothesis.

It didn’t take long before many of the scientists on the list began to complain mightily about being on this bogus list.

– Just another day in the life of the smoke and mirrors climate denialists.

– A few quotes:

* “I am horrified to find my name on such a list. I have spent the last 20 years arguing the opposite.” – Dr David Sugden, Professor of Geography, University of Edinburgh
* “I have no doubts … the recent changes in global climate are man-induced. I insist that you immediately remove my name from this list since I did not give you permission to put it there.” – Dr Gregory Cutter, Professor, Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University.
* “Please remove my name. What you have done is totally unethical!!” – Dr Svante Bjorck, Geo Biosphere Science Centre, Lund University.

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Fury over ‘unethical’ warming website

New Zealand climate scientists are upset their names have been used by an American organisation wanting to challenge the increasingly accepted view that climate change is human induced.

Among the five scientists is Niwa principal scientist Dr Jim Salinger, who said he was annoyed the Heartland Institute was trying to use his research to prove a theory he did not personally support.

The institute describes itself as a non-profit research and education organisation not affiliated with any political party, business or foundation.

Dr Salinger said he was never contacted about his work which was being mis-used to undermine support for the idea that greenhouse gas emissions from human activities, largely fossil fuel burning, was warming the globe.

“I object to the implication that my research supports their position … they didn’t check with me.”

He said that he and the other New Zealand scientists all felt their work had been misinterpreted.

“We say global warming is real.”

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See also…

Ocean Dead Zones Growing; May Be Linked to Warming

Friday, May 9th, 2008

The world’s hypoxic zones—swaths of ocean too oxygen-deprived to support fish and other marine organisms—are rapidly expanding as sea temperatures rise, a new study suggests.

Researchers have tracked a decline in dissolved oxygen levels since 1960 in the tropical Pacific and Atlantic Oceans, which has extended the size of these undersea deserts and intensified their effects.

The oxygen level in these zones “is below the critical oxygen level for fish and other large marine animals,” said team leader Lothar Stramma, of the Leibniz Institute of Marine Sciences at the University of Kiel in Germany.

The team constructed a time line of oxygen concentrations at depths of between 985 and 2,295 feet (300 and 700 meters) using oxygen data records going back 50 years. The results fit predictions of the effects of global warming.

The oxygen declines were found to be most marked in tropical Atlantic regions, the study team reports in the latest issue of the journal Science.

In the east Atlantic, for example, the low-oxygen layer was found to have increased in height by 85 percent, growing from 1,215 to 2,265 feet (370 to 690 meters).

“The vertical area covered by some of these layers has almost doubled in the Atlantic,” Stramma said.

Conditions have also become more suffocating for life within these hypoxic waters, he said.

“In general this low-oxygen zone had widened, and in some areas the oxygen value also got lower.”

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Beetle tree kill releases more carbon than fires

Thursday, May 1st, 2008

He that troubleth his own house shall inherit the wind.” A Biblical proverb for our times, it turns out….

The bark beetle is devastating North American trees (see “Climate-Driven Pest Devours N. American Forests“).

Global warming has created a perfect climate for these beetles — Milder winters since 1994 have reduced the winter death rate of beetle larvae in Wyoming from 80% per year to under 10%, and hotter, drier summers have made trees weaker, less able to fight off beetles.

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18 states commit to take action on climate change

Thursday, April 24th, 2008

NEW HAVEN, Conn. (AP) — California Gov. Arnold Schwarzenegger predicted Friday that an international deadlock over how to deal with global warming will end once President Bush leaves office, while a leading expert warned of dire consequences if urgent action is not taken.

Schwarzenegger spoke at a conference at Yale University in which 18 states pledged to take action on climate change. He noted a dispute over whether the U.S. should commit to reducing its greenhouse gas emissions before China and India do the same.

“But I think the deadlock is about to be broken,” said Schwarzenegger, a Republican like Bush.

Schwarzenegger said all three president candidates would be great for the environment and predicted progress after one is inaugurated.

Schwarzenegger has been at odds with the Bush administration over a 2002 California law to reduce greenhouse gas emissions. The U.S. Environmental Protection Agency blocked the law from taking effect in California and 16 other states, saying global warming is not unique to the state and that emission goals should be set nationally.

Bush called for a halt Wednesday in the growth of greenhouse gases by 2025, acknowledging the need to head off serious climate change. The plan came under fire immediately from environmentalists and congressional Democrats who favor mandatory emission cuts, a position also held by all three presidential contenders.

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Climate change: a global threat multiplier

Friday, April 18th, 2008

– This is a favorite theme of mine and an essential part of what I call the Perfect Storm Hypothesis.   That there are many problems building up around us and that these problems potentiate and empower each other, or as the folks say, they multiply each other.

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A European Union study on the problems of global climate change, leaked to the press four days before its official launch on March 14, 2008, contained the sobering assessment that a failure to take radical action now to address global warming would create the likelihood of severe conflict over resources in the decades ahead. Two days later, on March 16, data from the United Nations Environment Programme (UNEP) reveals that the rate of shrinking of glaciers across the world – a key marker of climate change – has accelerated; this more than doubled between 2006 and 2007, and the 2007 figure was five times the average for the 1980-99 period. These two documents, taken together, present governments and citizens in the leading emissions-producing countries in particular with an unavoidable test.

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Science solves global warming

Friday, April 18th, 2008

The Greens in New Zealand have shared a new discovery with the rest of us:

Scientists searching for a way to solve global warming have stumbled on the perfect solution for removing CO² from the air and locking it away in a non gaseous state. Crucially – given the scale of the problem – the device is self-replicating, self-powered and has the added benefit of preventing floods and erosion. They call it ‘the tree’.

080415 – April 18th – and SNOW!

Friday, April 18th, 2008

– This is the second time in recent weeks that we’ve simply closed the gate to our business because the weather has just been too weird to deal with. It is 2 PM on April 18th. I understand there was some snow yesterday in Seattle and that set a new record for the latest day in the year that it has ever snowed.

– This kind of thing can be very damaging to us. It is late enough in the year that many plants and trees have decided it is spring and they sent out their tender new spring shoots. Shoots that will not survive if the temperatures drop into a hard freeze tonight. We’ll just have to wait and see. With 8 acres and literally thousands of plants and trees outside, there’s nothing we can do but see what comes.

Snow on April 18th !!!

Some folks will, of course, say that this proves there is no Global Warming.   But, they are deeply confused.   The issue is really Global Climate change and such change is going to happen in a chaotic manner with a lot of wild swings both ways even as the average temperature rises.   Is this one such swing?   No one can say but I am certainly wondering about it.