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Posts Tagged ‘ice’

Polar ice shelves: Breaking waves

The coup de grace that shatters ice shelves is administered by ocean waves

IN 2008 part of the Wilkins ice shelf on the edge of the Antarctic peninsular suddenly disintegrated. It was seen by some as a portend. If other, larger shelves—huge ice sheets that have slipped off the land but are not floating freely on the sea—were to break up in a similar way, their non-floating ice (which is not subject to Archimedes’s principle that it displaces its own weight of water) would be converted into floating ice (which is), and the sea level would rise.

The Wilkins shelf may or may not have been the victim, ultimately, of climate change. Regardless of what weakened it, though, it was not rising temperatures that caused the sudden break up. Peter Bromirski of the Scripps Institution of Oceanography in San Diego thinks he knows what did: a little-studied phenomenon called infragravity waves. …

Billy Murray Injured In Skiing Accident

Bill Murray will spend the next several weeks hopping around on a crutch after injuring himself in a skiing accident on the slopes of Park City, Utah on Sunday.
The Lost In Translation star hurt his leg just one day before the Sundance Film Festival world premiere of his new film, Get Low. Bill was in [...]

Dutch take to the ice in hundreds

As much of Europe sought refuge from the cold, hundreds of Dutch embraced the chill yesterday for the year’s first skating event on natural ice, held on the frozen Henschoter Lake in Utrecht. “It has been very busy, I expect that up to 1,500 people will have taken part by the end of the day,”

Obama’s Current Science Advisor Warned in the 1970′s of a New Ice Age … And Is Open to Shooting Soot Into the Upper Atmosphere

Preface: My entire purpose for writing this essay is to urge that decision-makers do what is best for our planet and not do something which will cause more harm than good. Environmentalists should check my background below before dismissing this out of…

Scientists Considered Pouring Soot Over the Arctic in the 1970s to Help Melt the Ice – In Order to Prevent Another Ice Age

(Environmentalists: Kindly start by reading the end notes to see my background and why I am writing this) On April 28, 1975, Newsweek wrote an article stating:Climatologists are pessimistic that political leaders will take any positive action to compen…

Converting ICE cars to EVs

I can see why Iceland might work well for electric vehicles. The population is not huge and it’s fairly concentrated. I believe they generate their electricity from fully renewable sources – mainly geothermal. They are sitting on a lot of hot rock. The economy is bust, but maybe that would help to make them very interested in importing less oil.


So the deal REVA has done with a local company that will help with charging infrastructure is maybe not all that surprising.


But what about this element? ‘In addition to importing new EV models to Iceland, NLE is also working on developing systems to convert the current internal combustion engine (ICE) car fleet into Electric Cars.’ The mind boggles. They certainly don’t lack ambition over there.


Disposing of all those replaced ICE engines for the whole fleet might be tricky. Not much of an aftermarket. There could be unwanted stockpiles of the things forming, like little terminal moraines, just outside Reyjavik, an unsightly reminder of a dirtier automotive age. Maybe that’s why the place is called ‘ICE-LAND’ (sorry).


To be serious for a second, anyone out there got thoughts on this sort of conversion work at volume and making it commercially do-able? Sounds like a non-starter but I have been around long enough not to necessarily discount anything, however outlandish sounding.

ICELAND: Northern Lights Energy and REVA sign agreement

Soon, tasty and healthy ice creams

Ice cream researchers at University of Missouri are working towards making the chilling desserts into functional foods.
They have already discovered ways to make ice cream tastier and healthier and have contributed to ice cream development and manufacturing for more than a century.
“The idea of putting a functional ingredient into a food instead of just using [...]

Melting Southern Ice Sheets Surprise Scientists

Working with millions of NASA satellite measurements, researchers from the British Antarctic Survey and the University of Bristol find dynamic ice thinning occurring in all latitudes in Greenland and intensifying on key Antarctic coastlines.
– While NASA satellite data clearly shows the Arctic is thinning, researchers from the British Antarctic Survey and the University of Bristol say the quot;dynamic thinning quot; of glaciers now reaches all latitudes in Greenland and has intensified on key Antarctic coastlines. Working with millions o…


99 percent pure water ice found on Mars

NASA’s Mars Reconnaissance Orbiter (MRO) has revealed sub-surface water ice that may be 99 percent pure, halfway between the North Pole and the equator on the Red Planet.
“We knew there was ice below the surface at high latitudes of Mars, but we find that it extends far closer to the equator than you would think, [...]

Nothing new under the sun

Anthropogenic global warming started when people began farming

IMAGINE a small group of farmers tending a rice paddy some 5,000 years ago in eastern Asia or sowing seeds in a freshly cleared forest in Europe a couple of thousand years before that. It is here, a small group of scientists would have you believe, that humanity launched climate change. Long before the Industrial Revolution—indeed, long before a worldwide revolution in intensive farming, the results of which kept humanity alive—people caused unnatural exhalations of greenhouse gases that had an impact on the world’s climate.

Much of what is known about recent ice ages comes from drilling into the ice at the planet’s poles. This holds a chemical chronology of the Earth laid out by depth. There is evidence in this ice-core record of seven periods when the ice caps expanded, and each of them shows a steady decline in the level of greenhouse gases after the ice receded again. All, that is, but for the one which saw the rise of modern agrarian societies. …

Satellites reveal true extent of melting ice

Photos from US spy satellites declassified by the Obama administration provide the first graphic images of how the polar ice sheets are retreating in the summer


Satellites reveal true extent of melting ice

Photos from US spy satellites declassified by the Obama administration provide the first graphic images of how the polar ice sheets are retreating in the summer


The evidence Bush tried to hide

Photos from US spy satellites declassified by the Obama White House provide the first graphic images of how the polar ice sheets are retreating in the summer. The effects on the world’s weather, environments and wildlife could be devastating

Graphic images that reveal the devastating impact of global warming in the Arctic have been released by the US military. The photographs, taken by spy satellites over the past decade, confirm that in recent years vast areas in high latitudes have lost their ice cover in summer months.

The pictures, kept secret by Washington during the presidency of George W Bush, were declassified by the White House last week. President Barack Obama is currently trying to galvanise Congress and the American public to take action to halt catastrophic climate change caused by rising levels of carbon dioxide in the atmosphere.

One particularly striking set of images – selected from the 1,000 photographs released – includes views of the Alaskan port of Barrow. One, taken in July 2006, shows sea ice still nestling close to the shore. A second image shows that by the following July the coastal waters were entirely ice-free.

The photographs demonstrate starkly how global warming is changing the Arctic. More than a million square kilometres of sea ice – a record loss – were missing in the summer of 2007 compared with the previous year.

Nor has this loss shown any sign of recovery. Ice cover for 2008 was almost as bad as for 2007, and this year levels look equally sparse.

“These are one-metre resolution images, which give you a big picture of the summertime Arctic,” said Thorsten Markus of Nasa’s Goddard Space Flight Centre. “This is the main reason why we are so thrilled about it. One-metre resolution is the dimension that’s been missing.”

Disappearing summer sea ice poses considerable dangers, scientists have warned. Ice shelves are used by animals such as polar bears as platforms for hunting seals and other sea creatures. Without them, they could starve. In addition, ice reflects solar radiation. Without that process, the Arctic sea could warm up even more. The phenomenon threatens to set off runaway heating of the planet, say climatologists.

The latest revelations have triggered warnings from scientists that they no longer have the funds to keep a comprehensive track of climate change. Last week the head of the US’s National Oceanic and Atmospheric Administration (NOAA), Professor Jane Lubchenco, warned that the gathering of satellite data – crucial to predicting future climate changes – was now at “great risk” because America’s ageing satellite fleet was not being replaced.

“Our primary focus is maintaining the continuity of climate observations, and those are at great risk right now because we don’t have the resources to have satellites at the ready and taking the kinds of information that we need,” said Lubchenco, who was appointed by Obama. “We are playing catch-up.”

Even before her warning, scientists were saying that America, the world’s scientific superpower, was virtually blinding itself to climate change by cutting funds to the environmental satellite programmes run by the Oceanic and Atmospheric Administration and Nasa. A report by the National Academy of Sciences this year warned that the environmental satellite network was at risk of collapse.

In February, a Nasa satellite carrying instruments to produce the first map of the Earth’s carbon emissions crashed near Antarctica only three minutes after lift-off.

The satellite would have measured carbon emissions at 100,000 points around the planet every day, providing a wealth of data compared to the 100 or so fixed towers currently in operation in a land-based network.

The NOAA is under additional pressure to provide environmental data because of the re-emergence of the El Niño climate phenomenon, where warming of the tropical Pacific causes heatwaves, droughts and flooding around the world. June’s land and sea surface temperatures were the second hottest on record, and scientists are predicting this will be the warmest decade in recorded history. The last major El Niño was in 1998, the hottest year in recorded history.

The Obama administration has already taken steps to tackle America’s flagging scientific lead. The president’s economic recovery plan allotted $170m (£100m) to help close the gaps in climate modelling. The NOAA is seeking an additional $390m in its 2010 budget to upgrade environmental satellites, and help make data more available to researchers and government officials.

guardian.co.uk © Guardian News & Media Limited 2009 | Use of this content is subject to our Terms & Conditions | More Feeds


Greenland comes in from the cold

As world leaders grapple with the perils of climate change, there are parts of the globe where warmer temperatures are welcomed. Hardtalk presenter Stephen Sackur has just returned from Greenland where he found plenty of people eyeing opportunities amid the melting glaciers.

Fjord in Greenland

The musk ox steak on my plate was seductively dark and succulent. One of my dining companions was eyeing a slab of reindeer flesh big enough to feed a pack of huskies, while the other was drooling over scallops harvested from the clear cold waters of the Baffin Sea.

But never mind this traditional, and sublime, Greenlandic fare, I really want to tell you about my side order of leeks. Without wishing to sound immodest I know a thing or two about vegetables – it comes from being the son of a Lincolnshire farmer – and I can tell you the Rowing Club in Kangerlussuaq has few peers when it comes to fresh, home-grown vegetables.

That last phrase bears repetition, home-grown vegetables, in Kangerlussuaq, north of the Arctic Circle where the summer sun never sets and the winter darkness lasts for half a year.

Arctic thaw

I summoned restaurateur Kim Ernst from his kitchen. "You must have grown these fine vegetables in a glass house," I said with a sceptical frown.

"Not at all", he replied, "they’re all from my garden. If you don’t believe me come and see." So I did, and he was right. Greenland, is finally showing signs of living up to its name.

The last decade has brought with it markedly higher summer temperatures in the arctic North.

In southern Greenland farmers have planted fields of potatoes as the growing season has lengthened.

Greenland

Plans are afoot to establish forests of Siberian Larch on this windswept and treeless island.

For Greenlanders, all 56,000 of them, the long-term prospect of being able to "grow their own", from tomatoes to timber, is little short of intoxicating.

Eighty percent of Greenland is covered in ice. For thousands of years Inuit peoples have eked out a precarious living along the coastal fringe, reliant on the sea’s bounty: fish, seals and whales.

But now the climate is changing, and so too are the traditional rhythms of Inuit life.

Nowhere is this more obvious than the small fishing port of Illulisat perched above an ice fjord on Greenland’s west coast. A generation ago the waters of the surrounding Disko Bay would freeze thick and hard every winter.

The local Inuit would hitch their dog teams to their sleds and make long excursions onto the ice, to hunt for seal and to fish, but in recent years the winter ice has been treacherous or non-existent.

Fishing boats have been able to put to sea in the months of darkness, leaving Illulisat’s huskies chained to their posts, forlorn and useless.

Redundant huskies

"I used to have 25 dogs," one fisherman told me. "Now I have nine."

"What did you do with the others" I asked. "The dog catcher came round," he replied with cold detachment. "With a gun."

The giant glacier in Illulisat’s fjord has retreated more than 10 miles in the last decade. For international climate campaigners it has become a graphic symbol of our planet in peril. But Greenlanders have a different take on the changes they see.

Greenland

"We understand that this is a global issue," Greenland’s softly-spoken premier Kuupik Kleist told me in the capital Nuuk, "but we see opportunities as well as challenges. I want a Greenland that is open to those opportunities."

This summer Greenland was granted self-rule by Denmark, the old colonial power. Crucially, the new settlement puts control of potentially vast resources in local hands.

Oil, gas, a host of industrial and precious metals – even diamonds – are believed to be present in commercially significant deposits.

And the recent warming has made long-term exploration and mining a less daunting proposition. To see for myself I took a boat from Nuuk deep into the neighbouring fjord.

We passed whales blowing and diving, icebergs sparkling in the low sun and after two magical hours we reached our destination, a tent camp pitched above a natural inlet.

New goldrush

This is where a Greenlandic goldrush may be about to begin. Geologists from Nuna Minerals showed me their best prospect, a run of craggy rock where they have already extracted core samples from hundreds of metres down.

"This vast island, rich in resources, is coming in from the cold"

Greenland

"So far, it looks promising," Nuna’s geologist Rasmus told me, as we swatted a thick cloud of mosquitoes. "Twenty years from now if all goes well, there could be a port facility here, infrastructure, a profitable gold mine."

And what would that mean for this unsullied Arctic wilderness Rasmus paused. "Look, I appreciate this place. I work here. I have no intention of ruining it."

On my return to Nuuk harbour, I watched British tourists disembark from a cruise ship. They were serenaded on to shore by a party of Greenlandic schoolchildren in traditional Inuit dress.

"How adorable," one woman said.

Yes, traditions are held dear in Greenland but do not be deceived. This vast island, rich in resources, is coming in from the cold.

Stephen Sackur begins a three part Hardtalk on the Road, starting Tuesday 28 July 2009 for transmission times seeHardtalk.

How to listen to: From Our Own Correspondent

Radio Four: Saturdays, 1130 BST. Second weekly edition on Thursdays, 1100 BST (some weeks only).

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NASA aircraft studies receding Arctic sea ice to improve understanding of its life cycle

A small NASA aircraft has completed its first successful science flight in partnership with the University of Colorado at Boulder as part of an expedition to study the receding Arctic sea ice and improve understanding of its life cycle and the long-term stability of the Arctic ice cover.
NASA’s Characterization of Arctic Sea Ice Experiment, [...]

Rep. Becerra Skips Ice Cream Fundraiser For Health Care Vote

As the House Committee on Ways and Means wrangled over health care reform legislation on Thursday, one of the panel’s members, Rep. Xavier Becerra (D-Calif.) missed his own ice cream party at the National Democratic Club’s townhouse near the C…

Sea ice formed in the Arctic before it did in Antarctica

A new study has concluded that significant sea ice formation occurred in the Arctic earlier than previously thought, which suggests that sea ice formed in the Arctic before it did in Antarctica.
“The results are also especially exciting because they suggest that sea ice formed in the Arctic before it did in Antarctica, which goes against [...]

Michael Rowe: The New Ice Age of the Young Republicans

The election of 38-year old Audra Shay of Louisiana to the chairmanship of the Young Republican National Federation on Saturday, in Indianapolis, might have gone…