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Risk, Ambiguity and Decision

Risk, Ambiguity and Decision

By Daniel Ellsberg
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Tag: Arctic


Canada’s Polar Bears Face Food Crisis by 2100

Due to the shrinkage of the sea ice, the survival of polar bears in Canada’s Arctic Archipelago is doubtful in around 80 years’ time.

Posted on Nov 30, 2014 READ MORE



Science Panel’s Urgent Warning to Tackle Climate Change

The U.N. panel of climate scientists says some consequences of global warming will become irreversible unless greenhouse gas emissions fall to zero by the end of the century—but latest research suggests the reality may be even more urgent than that.

Posted on Nov 3, 2014 READ MORE



Arctic Melting Sends Winter Warning to Europe and Asia

Patterns of winds and pressure systems traced by researchers to the decline in Arctic sea ice can transport cold air further south and create harsher winters in Eurasia.

Posted on Oct 31, 2014 READ MORE



Sea Rise May Still Pose Man-Sized Threat

Although new research discounts the likelihood of a two-meter sea rise this century, the predicted impacts of global warming are still bad news for the many millions of people living at or near sea level.

Posted on Oct 23, 2014 READ MORE



Ice Loss Sends Alaskan Temperatures Soaring

Scientists analyzing more than three decades of weather data for the northern Alaska outpost of Barrow have linked an astonishing 7°C temperature rise to the decline in Arctic sea ice.

Posted on Oct 17, 2014 READ MORE



Why Greenland Is Likely to Melt More Quickly Than Previously Expected

Scientists who have examined the role of the bedrock beneath the Greenland ice sheet think it shows the huge island is more vulnerable than realized to global warming.

Posted on Oct 2, 2014 READ MORE



Ice Melt Dilutes Arctic Sea’s CO2 Cleanup Role

New scientific research confirms that global warming is melting increasingly larger areas of Arctic sea ice—and reducing its vital function of removing CO2 from the atmosphere.

Posted on Sep 27, 2014 READ MORE



Sun Sheds Light on Arctic Carbon Puzzle

Scientists discover that, as the Arctic continues to warm, sunlight will be the major cause of CO2 escaping into the atmosphere from vegetation preserved in frozen soil.

Posted on Sep 5, 2014 READ MORE



Putin Rejects NATO Accusations of Aggression

The Russian president rejected accusations that he has effectively invaded Ukraine, likening the behavior of Ukrainian forces in the conflict to Nazis and threatening to take his standoff with the West into the disputed territory of the Arctic.

Posted on Aug 29, 2014 READ MORE



Pre-History Proof of Climate’s Seesaw Sensitivity

Computer simulations reaching back deep into the last Ice Age have enabled scientists to put a historic perspective on how even small variations in the climate system can lead to dramatic temperature change.

Posted on Aug 25, 2014 READ MORE



Freedom of the Press Endangered in Ferguson

Several journalists have been arrested during protests held in Ferguson, Mo., over Michael Brown’s shooting; Egypt issues a statement urging the U.S. to employ “restraint” in the Missouri suburb, seemingly mocking similar statements from the American government in the past; meanwhile, the Arctic’s snow depth has fallen significantly in the past half century. These discoveries and more after the jump.

Posted on Aug 20, 2014 READ MORE



Arctic Warming Blamed for Dangerous Heat Waves

Giant waves in the jet stream that often govern our weather are changing as the Arctic warms more rapidly—leading to long periods of soaring temperatures that pose major threats to economies and human health.

Posted on Aug 17, 2014 READ MORE



Norway Fails to Tap New Arctic Oil and Gas

The Norwegian company conducting some of the most northerly drilling operations in the world acknowledges that it has failed so far to find commercially exploitable hydrocarbon reserves in the high Arctic.

Posted on Aug 12, 2014 READ MORE



Lakes Raise New Question on Arctic Warming

Research into the lakes that form when permafrost melts challenges the widely held view that they are contributing to Arctic temperature rise by releasing carbon into the atmosphere.

Posted on Aug 4, 2014 READ MORE



Svalbard’s Reindeer Thrive as Climate Warms

Rising temperatures have many negative impacts in the Arctic region, but warmer winters have resulted in a remarkable 30 percent population increase for a subspecies of Norwegian reindeer.

Posted on Jul 21, 2014 READ MORE



High-Tech Quest for Arctic Sea Ice Answers

A sophisticated array of automatic sensors will allow scientists to conduct the longest ever monitoring program to determine the precise physics of summer sea ice melt in the Arctic.

Posted on Jul 20, 2014 READ MORE



Atlases Reveal Climate and Weather Impacts

More than 40 years of extreme global weather and decades of ice loss in the Arctic are graphically shown in two new atlases.

Posted on Jul 12, 2014 READ MORE



Whalers’ Tales Shed New Light on Arctic Ice

A new study analyzing the log books of British whaling ships’ journeys more than 200 years ago has gathered vital data on the Arctic ice sheet before extensive fossil fuel use began to affect climate.

Posted on Jul 5, 2014 READ MORE



Underworld Threat to Melting Icecap

Scientists using radar images of Greenland’s glaciers have discovered a spectacular underground landscape of “skyscraper” ice blocks formed by the melt-and-freeze cycle that is accelerating the reduction of the icecap.

Posted on Jun 16, 2014 READ MORE



Dark Shadows Fall on Melting Icecap

Dust blowing onto the Greenland icecap from warming areas of the Arctic is causing the ice to melt faster by reducing the whiteness that reflects light and keeps it cool.

Posted on Jun 13, 2014 READ MORE



Threats From New Gases Found in Air

Three more new CFC gases discovered in the atmosphere have the potential to add to global warming, and scientists say the evidence points to them being man-made.

Posted on Jun 5, 2014 READ MORE



How Nature Affects the Carbon Cycle

As global temperatures warm, scientists say that in both Australia and the Arctic natural processes are at work to help mitigate the increased heat.

Posted on Jun 1, 2014 READ MORE



Report: Melting Arctic Ice Will Dump More Than 1 Trillion Pieces of Plastic Into the Sea

The ice patches due to melt will unleash an amount of plastic waste more than double the size of Texas.

Posted on May 27, 2014 READ MORE



Greenland Ice May Melt Even Faster

The vulnerability of Greenland’s glaciers to global warming is even greater than feared, according to radar and satellite data analysed by U.S. research scientists—and that’s bad news for rising sea levels.

Posted on May 25, 2014 READ MORE



Lapland’s Mystery Moths Puzzle Science

Warmer and wetter conditions are often bad news for wildlife. But moths in Finland’s Arctic region are bucking the trend—and no one knows why.

Posted on Apr 24, 2014 READ MORE



Early Springs Surprise Many Species

Several species are struggling to adapt to the increasingly early advent of spring, and some are finding it beyond them.

Posted on Apr 8, 2014 READ MORE



Climate Science Is ‘Beyond Argument’

Beset by pollution, overfishing and often uncontrolled exploitation, the world’s high seas are also under mounting pressure from climate change, a panel of international leaders says.

Posted on Mar 17, 2014 READ MORE



Arctic Melt Speeding Up

It’s long been established that Arctic ice is on the retreat, but it’s the pace of change that’s surprising scientists: The latest studies show the region is the warmest it’s been in 40,000 years.

Posted on Mar 10, 2014 READ MORE



U.S. Urges Fishing Ban in Melting Arctic

Arctic countries are being urged by the U.S. to forbid commercial fishing in the further reaches of the thawing Arctic Ocean until there is a sound scientific base for managing the fishing fleets.

Posted on Feb 27, 2014 READ MORE



Arctic ‘Is Set to Reach 13°C by 2100’

Scientists in the U.S. expect the rise in temperature in the Arctic by the end of the century will be more than six times greater than the globally agreed safety threshold.

Posted on Feb 20, 2014 READ MORE



Shell Apparently Won’t Drill in the Arctic

The giant fossil fuel corporation announced Thursday that it would shelve plans to drill in the Alaskan Arctic in 2014.

Posted on Jan 30, 2014 READ MORE



NASA Goddard Space Flight Center (CC BY 2.0)

Antarctic Fjord Life Puzzles Science

The variety and extent of marine life found in the fjords of the warming Antarctic Peninsula is in stark contrast to the sparsely populated seas of the Arctic.

Posted on Dec 14, 2013 READ MORE



madpai (CC BY 2.0)

Arctic Is Warmer Than In 40,000 Years

Evidence of the speed and severity of recent Arctic warming has been unearthed by scientists who found mosses that were exposed to sunlight for the first time in at least 40 millennia.

Posted on Oct 25, 2013 READ MORE



Polar Cruises (CC BY 2.0)

Arctic Sea Ice Reaches Lowest Extent for 2013

The amount of sea ice in the Arctic appears to have reached its lowest level in 2013—more than last year, but well below the long term average.

Posted on Sep 22, 2013 READ MORE



isfleming (CC BY-SA 2.0)

Arctic Albedo Loss Threatens Wildlife

The rapid thawing of the region’s sea ice is affecting virtually every species of Arctic wildlife—and a new study of how the rate of melting is accelerating shows the problem is set to worsen.

Posted on Aug 8, 2013 READ MORE



Pink floyd88 a/Wikimedia Commons

Ice-Free Arctic Pinpointed 40 Years Ahead

The melting of the Arctic ice cap has become so fast and so certain that researchers can now confidently predict when the region will become ice free to within four years.

Posted on Jul 22, 2013 READ MORE



christine zenino (CC BY 2.0)

Greenland Faces ‘Modest’ but Risky Melt

Although scientists believe Greenland’s contribution to sea level rise may be less than had been thought, they say the impacts could still be serious.

Posted on Jul 10, 2013 READ MORE



Drew Avery (CC BY 2.0)

Diseases Spread as Arctic Ice Melts

As the climate warms in Arctic regions, more diseases from Europe and elsewhere are spreading there, threatening both animal and human populations.

Posted on Jun 8, 2013 READ MORE



NASA Earth Observatory (CC BY 2.0)

A Cooler Century? Wait and See

New research suggesting the Earth may be warming more slowly than expected does not mean climate change is a false alarm, experts say.

Posted on May 25, 2013 READ MORE



VinothChandar (CC BY 2.0)

Chilling: Arctic Tundra ‘Will Turn to Forest’

Two sets of scientists working independently have come to the conclusion that the Arctic will soon be ice free and forested.

Posted on May 18, 2013 READ MORE



madpai (CC BY 2.0)

Greening Tundra Shows Arctic Heat

Arctic vegetation is now growing nearly 500 miles closer to the North Pole than it was a few decades ago, indicating that the region is warming fast.

Posted on Mar 13, 2013 READ MORE



Dick Nivers (CC BY 2.0)

Fast Boat to China?

In less than 50 years from now, the north-west passage through the Arctic should be open to suitable vessels for a short time every other year, scientists have calculated.

Posted on Mar 5, 2013 READ MORE



NASA Goddard Photo and Video (CC BY 2.0)

A Global Warming Resource Rush

The disappearance of ice from the planet’s North Pole currently in progress means unprecedented access to minerals and energy that have been trapped beneath the surface for ages.

Posted on Feb 19, 2013 READ MORE



NOAA Photo Library (CC BY 2.0)

Arctic Ice Loses Volume Fast

Researchers say the Arctic sheet is not only shrinking in area, but also losing much of its volume by thinning.

Posted on Feb 16, 2013 READ MORE



Alaskan Dude (CC BY 2.0)

Alaskan Climate Team Hasn’t Met in Years

A rapid-response task force set up by former Alaska Gov. Sarah Palin with the stated intent to protect the state from the worst effects of climate change hasn’t convened since March 2011, newly released documents show.

Posted on Feb 6, 2013 READ MORE



NASA Goddard Photo and Video (CC BY 2.0)

U.S.-Size Ice Cube Melts

In a report released at the U.N. climate talks in Doha, Qatar, this week, the World Meteorological Organization said an area of Arctic ice bigger than the United States disappeared under warmer temperatures this year.

Posted on Nov 28, 2012 READ MORE



Democracy Now!

Truthdigger of the Week: James Balog

In “Chasing Ice,” a new film on the disappearance of Arctic glaciers, author, award-winning photographer and reformed climate-change denier James Balog used time-lapse photography to capture global warming in progress.

Posted on Nov 17, 2012 READ MORE



tipiro (CC BY 2.0)

Scientists Paint a Grim Picture of Earth’s Condition

A group of scientists is warning that the Earth—beset by environmental destruction, climate change and unbridled population growth—is heading for a tipping point that, once passed, will unleash a catastrophic breakdown in the planet’s biosphere that will bode ill for all creatures—including man—that call it home.

Posted on Jun 7, 2012 READ MORE



Space & Light (CC BY-SA 2.0)

Russia and Exxon Mobil Sign Arctic Oil Deal

In a bid to remain the world’s top oil producer, Russia is partnering with Exxon Mobil and a number of other foreign oil companies to develop plans to get at reserves deep beneath the Arctic crust as early as 2020.

Posted on May 25, 2012 READ MORE


Why an Unusually Melty Arctic Means Trouble

Dr. Tom Wagner of NASA is remarkably cheerful as he explains how the historic melting of sea ice in the Arctic threatens to exacerbate climate change across the globe.

Posted on Oct 4, 2011 READ MORE


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