Archive for the ‘Climate Change’ Category

What will global warming look like? Scientists point to Australia

Tuesday, April 14th, 2009

“Farmers who once grew 60% of the nation’s produce are walking off their land or selling their water rights to the state and federal government. With rainfall in the region at lower than 50% of average for more than a decade, Australia is witnessing the collapse of its agricultural sector and the nation’s ability to feed itself.”

Reporting from The Murray-Darling Basin, Australia — Frank Eddy pulled off his dusty boots and slid into a chair, taking his place at the dining room table where most of the critical family issues are hashed out. Spreading hands as dry and cracked as the orchards he tends, the stout man his mates call Tank explained what damage a decade of drought has done .

“Suicide is high. Depression is huge. Families are breaking up. It’s devastation,” he said, shaking his head. “I’ve got a neighbor in terrible trouble. Found him in the paddock, sitting in his [truck], crying his eyes out. Grown men — big, strong grown men. We’re holding on by the skin of our teeth. It’s desperate times.”

A result of climate change?

“You’d have to have your head in the bloody sand to think otherwise,” Eddy said.

They call Australia the Lucky Country, with good reason. Generations of hardy castoffs tamed the world’s driest inhabited continent, created a robust economy and cultivated an image of irresistibly resilient people who can’t be held down. Australia exports itself as a place of captivating landscapes, brilliant sunshine, glittering beaches and an enviable lifestyle.

Look again. Climate scientists say Australia — beset by prolonged drought and deadly bush fires in the south, monsoon flooding and mosquito-borne fevers in the north, widespread wildlife decline, economic collapse in agriculture and killer heat waves — epitomizes the “accelerated climate crisis” that global warming models have forecast.

With few skeptics among them, Australians appear to be coming to an awakening: Adapt to a rapidly shifting climate, and soon. Scientists here warn that the experience of this island continent is an early cautionary tale for the rest of the world.

“Australia is the harbinger of change,” said paleontologist Tim Flannery, Australia’s most vocal climate change prophet. “The problems for us are going to be greater. The cost to Australia from climate change is going to be greater than for any developed country. We are already starting to see it. It’s tearing apart the life-support system that gives us this world.”

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Climate Tipping Point Near Warn UN, World Bank

Tuesday, April 14th, 2009

WASHINGTON, DC, February 23, 2009 (ENS) – The planet is quickly approaching the tipping point for abrupt climate changes, perhaps within a few years, according to the UN Environmental Programme’s newly released 2009 Year Book and a separate World Bank report now being presented throughout Latin America.The UN agency warns that urgent action is needed to avoid catastrophic climate events such as major food and water shortages, shifts in weather patterns, and destabilization of “major ice sheets that could introduce unanticipated rates of sea level rise within the 21st century.”

The report warns that climate changes are occurring much faster than anticipated by the latest Intergovernmental Panel on Climate Change report, issued in 2007.

While earlier estimates forecast up to half a meter (19.5 inches) rise in sea level in the coming century, updated calculations suggest that the rise may be as high as two meters (78 inches).

Melting ice sheets and glaciers in the northern and southern hemispheres will not only contribute to sea level rise, but will also leave many regions around the world without basic water resources for human consumption and industrial production.

In its new report, the World Bank focuses on four climate impacts of special concern: “the warming and eventual disabling of mountain ecosystems in the Andes; the bleaching of coral reefs leading to an anticipated total collapse of the coral biome in the Caribbean basin; the damage to vast stretches of wetlands and associated coastal systems in the Gulf of Mexico; and the risk of forest dieback in the Amazon basin.”

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Climate Change Effects In California

Monday, April 13th, 2009

A biennial report released April 1 by a team of experts that advises California’s governor suggests that climate changes are poised to affect virtually every sector of the state’s economy and most of its ecosystems. Significant impacts will likely occur under even moderate scenarios of global greenhouse emissions and associated climate change, but without action, severe and costly climate change impacts are possible across the state.

The state Climate Action Team (CAT) report uses updated, comprehensive scientific research to outline environmental and economic climate impacts. Its authors include Dan Cayan, a climate scientist at Scripps Institution of Oceanography, UC San Diego, and a member of the CAT steering team.

A broad collaboration of scientists, mostly from state academic and government agencies, provided a large set of technical papers that form the underpinnings for much of the CAT report. Assessments include the impacts of sea level rise, higher temperatures, increased wildfires, decreased water supplies, increased energy demand, among others, on the state’s environment, industries and economic prosperity. Each of the papers has undergone peer review by technical experts in private, public and governmental entities.

Impacts of climate change to California’s coast, agriculture, forest and communities have been known and studied for years; however the studies that support the CAT report suggest that actual greenhouse gas emissions are outstripping 2006 projections. Of particular interest are the several papers focusing on the impacts of a rise in sea levels to coastal communities and increased potential of wildfires to residential areas.

“The Climate Action Team plays an essential role in the implementation of the state’s climate initiatives and is guided by these important technical studies to ensure policy decisions are based on sound science,” said Linda Adams, Secretary for Environmental Protection and Chair of the state’s CAT. “Any delay in fighting global warming would be detrimental to our economic stability – costing us billions of dollars and dampening the state’s most important economic sectors. Taking immediate action on climate change is essential to slow the projected rate of warming. We also need to make smarter decisions in order to anticipate and adapt to the changes.”

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 – Note, the red highlighting is mine.

Nuclear Power Cannot Solve Climate Change

Wednesday, April 8th, 2009

A new report finds that nuclear power plants cannot be built quickly enough and in a safe and secure manner to be a major global solution for climate change

Nuclear power plants cannot be built quickly enough and in a safe and secure manner to be a major global solution for climate change, according to a report released yesterday from the Carnegie Endowment for International Peace.

The report says the nuclear industry, under current policies and financing, won’t be able to build enough new reactors to make a difference in climate in the next 20 years.

“Without major changes in government policies and aggressive financial support, nuclear power is actually likely to account for a declining percentage of global electricity generation,” the report says.

The International Energy Agency’s World Energy Outlook 2008 projects that without policy changes, nuclear power’s share of worldwide electricity generation will drop from 15 percent in 2006 to 10 percent in 2030.

But policymakers should be aware of the timeline, costs and risks nuclear power brings as compared to the possible benefits, before expending a tremendous amount of resources on it, the report says.

Bottlenecks in the nuclear supply chain, weak infrastructure in developing countries and tighter credit risk management strategies in the wake of the economic crises will severely limit all countries’ capabilities to significantly expand their nuclear fleet, while the current fleet of reactors is likely to be retired by 2030, the report said.

The earliest the first new U.S. reactor could be finished is 2015, but the report notes that it takes about 10 years to put a new plant in service, from licensing to connection to the grid. In two dozen countries that are interested in obtaining civil nuclear energy but have not previously built a reactor, it will take even longer, the report says.

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More Australian Weather Records Tumble

Wednesday, April 8th, 2009

The Big Dry Down Under just got a whole lot drier. The first three months of 2009 in the already parched Murray Darling basin had the least amount of rainfall since Australian weather records began 117 years ago.

This massive drainage supports $9 billion in agriculture but has been hammered by what some are calling the worst drought in 1000 years. Authorities in Australia make no bones about the cause of this freaky weather.

“We’ve had big droughts before and big floods before, but what we didn’t have was climate change,” said Rob Freeman, the chief executive of the Murray-Darling Basin Authority.

The Murray Darling is home to 2 million people who may not even have enough water to survive in the future. “I’d be loath to say that critical human needs will always be secure”, warned Freeman.

The recent rainfall record was not the only smashed. Water inputs for three-year period ending March 2009 were less than half of the previous record from the great drought of 1943-1946.

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What we need vs. what we’ll get

Friday, April 3rd, 2009

– The current G-20 meeting has stirred a lot of commentary and hope.   The world has a lot of problems and there’s always the possibility and the hope, when a significant number of world leaders come together to talk about those problems, that they’ll make decisions that will improve things.The Browns and the Obamas

– Below, is an analysis by George Friedman of STRATFOR of the G-20 meeting and what’s likly to come out of it along with a look at a follow-on NATO meeting and an Obama-EU summit.  There’s even discussion of President Obama’s upcoming visit to Turkey, which will be his last stop on his current international trip.

– Other commentators might go through these same subjects; G-20, NATO, EU and Turkey and come to somewhat different conclusions about their meanings and prospects but I seriously doubt that anyone could seriously avoid my final conclusion – that what the world needs is not what the world is going to get out of all these meetings and pontifications.

– In the near-term, we need unified global strategies to pull the world out of the current economic melt-down.

– And, following immediately on the heels of such economic repairs, we need a deep recognition that mankind’s current dominate economic system, Capitalism, even when working well,  cannot continue as it is currently configured.   Its fundamental requirements of continuing growth and consumption to fuel itself, are axiomatically inconsistent with the fact that we live on a planet with finite resources.

– And, once we’ve rethought our basic economic systems and globally began to reorient them into something that focuses on sustainability rather than growth, then we need to move onto how we, globally, are going to defuse all the ecological and climatic destruction we’ve set in motion which is threatening to reset our climate and to initiate another major ecological die-off like the one that took out the dinosaurs 65 million years ago.

– That’s all.  It’s not much to ask, right?   Surely,the best and the brightest of our national leaders can see that these are the paths forward?

– Well, I wish I thought so, but I don’t.  Friedman’s analysis makes clear that in spite of the fact that we need radical new thinking, these meetings will end up driven by narrow national interests as nation jockeys against nation to see who’s going to do the work and pay the bills.

There’s your future, folks.– It’s as if we’re all sitting in a lifeboat at sea and we’re having meeting after meeting about how to best arrange the seating in the boat to determine who has to row and who gets to just sit and benefit. And all the time, the boat is slowing but inexorably sinking but no one can be bothered to talk about that because… because?     Damned if I know.

– Here’s George Freidman’s analysis.   See what you think:

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Three major meetings will take place in Europe over the next nine days: a meeting of the G-20, a NATO summit and a meeting of the European Union with U.S. President Barack Obama. The week will define the relationship between the United States and Europe and reveal some intra-European relationships. If not a defining moment, the week will certainly be a critical moment in dealing with economic, political and military questions. To be more precise, the meeting will be about U.S.-German relations. Not only is Germany the engine of continental Europe, its policies diverge the most sharply from those of the United States. In some ways, U.S.-German relations have been the core of the U.S.-European relationship, so this marathon of summits will focus on the United States and Germany.

Although the meetings deal with a range of issues — the economy and Afghanistan chief among them — the core question on the table will be the relationship between Europe and the United States following the departure of George W. Bush and the arrival of Barack Obama. This is not a trivial question. The European Union and the United States together account for more than half of global gross domestic product. How the two interact and cooperate is thus a matter of global significance. Of particular importance will be the U.S. relationship with Germany, since the German economy drives the Continental dynamic. This will be the first significant opportunity to measure the state of that relationship along the entire range of issues requiring cooperation.

Relations under Bush between the United States and the two major European countries, Germany and France, were unpleasant to say the least. There was tremendous enthusiasm throughout most of Europe surrounding Obama’s election. Obama ran a campaign partly based on the assertion that one of Bush’s greatest mistakes was his failure to align the United States more closely with its European allies, and he said he would change the dynamic of that relationship.

There is no question that Obama and the major European powers want to have a closer relationship. But there is a serious question about expectations. From the European point of view, the problem with Bush was that he did not consult them enough and demanded too much from them. They are looking forward to a relationship with Obama that contains more consultation and fewer demands. But while Obama wants more consultation with the Europeans, this does not mean he will demand less. In fact, one of his campaign themes was that with greater consultation with Europe, the Europeans would be prepared to provide more assistance to the United States. Europe and Obama loved each other, but for very different reasons. The Europeans thought that the United States under Obama would ask less, while Obama thought the Europeans would give more.

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– research thanks to Michael M.

Russia outlines Arctic force plan

Friday, April 3rd, 2009

– Now that the ice is melting in the arctic, the surrounding nations are all competing and clamoring to control the resources in the arctic ocean basin.   I’ve written about this before here and here.

– This could get militaristic.

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Russia has announced plans to set up a military force to protect its interests in the Arctic.

In a document published on its national security council’s website, Moscow says it expects the Arctic to become its main resource base by 2020.

While the strategy is thought to have been approved in September, it has only now been made public.

Moscow’s ambitions are likely to cause concern among other countries with claims to the Arctic.

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Study Ties Tree Deaths To Change in Climate

Sunday, March 15th, 2009

The death rates of trees in Western U.S. forests have doubled over the past two to three decades, according to a new study spearheaded by the U.S. Geological Survey, driven in large part by higher temperatures and water scarcity linked to climate change.

The findings, being published today in the online journal Science, examined changes in 76 long-term forest plots in three broad regions across the West, and found similar shifts regardless of the areas’ elevations, fire histories, dominant species and tree sizes. It is the largest research project ever done on old-growth forests in North America.

Nathan L. Stephenson, one of the lead authors, said summers are getting longer and hotter in the West, subjecting trees to greater stress from droughts and attacks by insect infestations, factors that contribute to tree die-offs.

“It’s very likely that mortality rates will continue to rise,” said Stephenson, a scientist at the Geological Survey’s Western Ecological Research Center, adding that the death of older trees is rapidly exceeding the growth of new ones, akin to a town where the deaths of old people are outpacing the number of babies being born. “If you saw that going on in your home town, you’d be concerned.”

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Carbon cuts ‘only give 50/50 chance of saving planet’

Sunday, March 15th, 2009

As states negotiate Kyoto’s successor, simulations show catastrophe just years away

The world’s best efforts at combating climate change are likely to offer no more than a 50-50 chance of keeping temperature rises below the threshold of disaster, according to research from the UK Met Office.

The key aim of holding the expected increase to 2C, beyond which damage to the natural world and to human society is likely to be catastrophic, is far from assured, the research suggests, even if all countries engage forthwith in a radical and enormous crash programme to slash greenhouse gas emissions – something which itself is by no means guaranteed.

The chilling forecast from the supercomputer climate model of the Met Office’s Hadley Centre for Climate Prediction and Research will provide a sobering wake-up call for governments around the world, who will begin formally negotiating three weeks today the new international treaty on tackling global warming, which is due to be signed in Copenhagen in December.

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– research thanks to Robin S.

Permafrost is thawing in northern Sweden

Saturday, March 14th, 2009

Areas with lowland permafrost are likely to shrink in northern Sweden.  Warmer summers and more winter precipitation are two of the reasons.  This is shown in a new dissertation from Lund University in Sweden.

Permafrost is ground that is frozen year round at least two years in a row.  North of the Arctic Circle permafrost is common due to the cold climate.  For several years, physical geographer Margareta Johansson at Lund University has studied lowland permafrost in peat mires surrounding Abisko.  Permafrost is on the edge of its range there.  Johansson states that permafrost is being affected by climate changes.

“At one of our sites, permafrost has completely disappeared from the greater part of the mire during the last decade,” she says.

In areas where permafrost is thawing the ground becomes unstable and can collapse.  This can be a local and regional problem in areas with cities and infrastructure.  Moreover, the thaw can cause increased emissions of the greenhouse gases carbon dioxide and methane from the ground.  Roughly 25 percent of all land surface in the northern hemisphere are underlain by permafrost.

The thawing of permafrost that occurs today is likely to continue, in Margareta Johansson’s view.  She regards it as probable that there will be no permafrost in lowland areas around Abisko in 50 years.

“With the present climate it is likely that the changes seen in permafrost in the Abisko area will also occur in other areas, and my study can therefore provide a basis for studies in other geographic areas that are next in line,” she says.

Margareta Johansson’s research shows that the permafrost in the Abisko area is thawing both from above and from below.  From above it is thawing primarily because the summers have become warmer and because the snow cover has become thicker in winter.  A thicker snow layer acts as an insulating blanket, which means that the ground does not get as cold as it would under a thinner layer of snow.

From below the permafrost is thawing probably as a result of greater mobility in the groundwater.  Margareta Johansson explains that the annual precipitation of both rain and snow has increased dramatically during the last decade.  More rain and more melted snow create more movement down in the groundwater, which thaws the permafrost.  Between 1997 and 2007 a total of 362 millimeters of precipitation fell annually in Abisko, which is a 20-percent increase compared to the mean annual precipitation for the years 1961 and 1990.

The dissertation will be presented and defended at Lund University on February 26, 2009.

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