Arctic ice melt changing global thermostat

(Images of Arctic sea ice thickness over the years from Flickr and climatesafety.org)

While many are skeptical the Earth is warming, the Arctic is one place where the change is very evident. But some say there could be advantages to melting summer ice there – ships can take a shorter route over the top of the globe, massive oil and gas reserves are more accessible. Maybe Arctic melting isn’t all bad, they say.

But does what happens in the Arctic stay in the Arctic?

Probably not, says NOAA. Melting sea ice there seems to be affecting weather patterns around the world, according to the National Oceanic and Atmospheric Administration’s 4th annual Arctic Report Card.

Changes in the Arctic are “messing with the thermostat for the whole globe,” said Richard Spinrad, assistant administrator of NOAA. The report card compiles the work of 71 scientists in nine countries.

They found climate change was affecting the Arctic is many ways:
• Declining summer sea ice
• A shorter snow season
• Rising land temperatures
• Warming permafrost, which stores methane
• Changes in habitat and numbers of polar bears, walruses and seabirds.

Summer Arctic sea ice hit a historic low in 2007 and has come back a bit the last two summers, which has skeptics saying, “See. There’s no global warming.”

But what’s new and perhaps more important is the thinning of perennial ice, not just that which melts in the summer and then comes back in fall. The average thickness is down 2.2 feet between the 2004 and 2008.

The summer sea ice melt causes more open dark water, which absorbs heat and then sends it back into the atmosphere in fall. This cycle is sending land temps up, letting trees grow in the tundra farther north and affecting atmospheric circulation as far south as middle North America.

As old, thick sea ice goes away and is replaced by more fragile first-year-ice, new climate patterns are being set up, says oceanographer James Overland. “It changes everything,” he told ClimateWire.
• The ocean surface is warmer and less salty
• Greenland is melting
• Siberia has more runoff
• There’s less snow in North America

So, what happens in the Arctic won’t stay in the Arctic. We’d all better take notice.

To read more and see slideshow go to NOAA's Web site

(Sources: ClimateWire, NOAA)

Why is Arctic ice melting even in winter?

(Photo of Arctic ice from Flickr and photographer kenyai/Tunde Pecsvari)

News Update: The Arctic polar ice cap is melting even in winter and last winter lost an estimated 20% of its thickness, according to British research out of the University College London. The cause is not winter temperatures, the researchers said. Speculation is that warm water is coming under the ice cap, either from ocean water heating up or currents changing. (Source: London Times )

Sarah Palin's views on Big Oil and the environment are a threat to all earthlings

(Couldn't resist this cartoon-photo on Flickr from earthpro/harold)

Weekly Angst: EarthlingAngst is back early from vacation because her angst level has gone way up over the selection of Alaska Gov. Sarah Palin as the GOP vice presidential candidate. Just when we were beginning to think things would have to get better for global warming with the next administration – whoever won – comes a candidate whose views on the environment are worse than George Bush’s.

Sarah Palin:
• Is skeptical that global warming is the result of human activities.
• Questions the science behind predictions of Arctic ice melt.
• Fought designation of the polar bear as threatened under the Endangered Species Act and now has filed suit against the Interior Department to de-list it.
• Favors drilling in ANWR and has tried to persuade Sen. McCain to take the same position, inviting him to visit the area.
• Favors off-shore drilling.
• Opposed a state initiative to stop metal mining pollution of streams where salmon spawn – the measure failed last week.
• Approves of shooting wolves and bears from airplanes.
• Opposes a federal windfall profit tax on oil, though she taxes them at the state level.

Alaska loves oil
Palin “embodies a distinctly Alaskan perspective” on oil and gas, which provides 85-90% of the state’s budget, according The Daily Green, a Hearst Web site.

Environmental groups were quick to pan the choice of Palin as McCain’s running mate. She’s a candidate who repeats Big Oil’s talking points, said Carl Pope, executive director of the Sierra Club.

She would continue the destructive Bush policies and is to the right of Bush on the polar bear, said the Defenders of Wildlife Action Fund.

With her support for drilling, she would continue the failed policies of Bush-Cheney and their Big Oil friends, League of Conservation Voters president Gene Karpinski said.

EarthlingAngst shudders at the thought that she could be a heartbeat away from a president in his 70s, or even have a strong influence on him. And her main support base is the extreme right social conservatives. (Her other views, in case you missed them, include overturning Roe v. Wade and teaching creationism in school alongside evolution.)

Biden’s environmental record
Is Democrat V.P. candidate Joe Biden better? Yes.

He has a lifetime environmental score of 83% with the League of Conservation Voters. According to LCV, he has been a leader on global warming issues, chairing Senate Foreign Relations Committee hearings on the national security implications of climate change and co-authoring a resolution telling President Bush to negotiate seriously on the international level for a post-Kyoto agreement. He has sponsored bills to decrease reliance on foreign oil and to increase fuel economy in cars. He’s against drilling in ANWR and voted to reduce oil usage 40% by 2025.

(Sources: McClatchy Newspapers, thedailygreen.com, League of Conservation Voters, Defenders of Wildlife Action Fund, Sierra Club.)