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Arctic species under threat, report warns

By Matthew Knight for CNN
September 14, 2010 -- Updated 1841 GMT (0241 HKT)
STORY HIGHLIGHTS
  • New report highlights extinction threat to Arctic wildlife
  • Whales, walruses, Arctic foxes, even plankton are all at risk of dying out
  • Rapid melting of Arctic ice sheet in recent years means habitats are disrupted or destroyed
  • Lead author says reducing greenhouse gas emissions is a must to prevent further losses
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London, England (CNN) -- Polar bears clinging to melting ice sheets have become one of the most frequently used images to portray the perils of climate change.

But a new report by the U.S. Center for Biological Diversity (CBD) and UK-based Care for the Wild International (CWI) is bringing attention to the predicament of other equally endangered Arctic species.

Seventeen Arctic animals are highlighted in "Extinction: It's Not Just for Polar Bears."

Shaye Wolf, lead author and climate science director of the CBD told CNN: "The plight of the polar bear due to global warming is very well known and familiar. But many other Arctic species are suffering a similar fate -- from plankton all the way to the great whales."

The impacts of climate change are "unfolding far more rapidly in the Arctic than any other area on the planet" threatening its ecosystem, the report said.

A 2009 study by Donald K. Perovich and Jacqueline A Richter-Menge -- "Loss of Sea Ice in the Arctic" -- reported that the sea ice extent in 2007 was one million square miles below the average figure recorded between 1979 and 2000.

This, and other data suggests, say scientists, that summer sea ice could completely disappear in the Arctic by 2030.

The ice retreat is already spelling trouble for marine mammals like the Pacific walrus and the harp seal.

Pacific walruses, like many of the mammals in the report, are sea ice dependent says Wolf, with many having already suffering population declines.

"As we speak, there are 10 to 20,000 walruses holed up on Alaskan Arctic coastline. And that is attributable to sea ice loss," Wolf says.

"Walruses need sea ice for resting because they can't swim continuously. When they lose that sea ice, especially moms and calves, they are forced to come to shore -- where calves are very vulnerable to be trampled in stampedes."

Last year, Wolf says the stampede claimed 131 young walruses.

The number was even higher off the Russian coast in 2007 where several thousand calves died when around 40,000 walruses were pushed ashore.

Ocean acidification -- caused by increased uptake of carbon dioxide -- is happening more quickly in the Arctic than in warmer waters, says Wolf.

Shell-building marine creatures like the sea butterfly (Clione limacina) are particularly vulnerable to acidification.

Their loss would be potentially devastating for other species.

On land, the Arctic fox -- found on the southern edges of the Arctic tundra -- is facing "myriad threats from climate change," including shrinking sea ice and tundra, declines in lemming prey and increased competition from the larger, more dominant red fox -- which is edging north as temperatures rise.

All the animals in the report are at risk of extinction due to climate change says Wolf.

"What is going on in the Arctic isn't something that we can consider completely remote from ourselves. Actually, it's a fantastic barometer of what is going to happen in the rest of the world," CWI's Rebecca Taylor told CNN.

"The Arctic is ground zero for climate change and we're already pushing many species towards extinction. The key to preventing their loss is reducing our greenhouse gas emissions -- specifically carbon dioxide -- to a level of 350ppm or below. That is a level many leading scientists have called for to restore Arctic sea ice," Wolf said.

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soundoff (88 Comments)
  • RealValues
    If we can't eat it, don't post it.
  • Thorrsman
    What a load...Polar bears have existed through several "warm periods" at least equal to what we know today. Same with the rest of the Arctic fauna. More hysteria for the cause. And the cause ISN'T "saving the planet".
  • RealValues
    1 Polar bear burger with cheeze please, and Alaska sauce. Thanks! Wuut. What u mean u don't have that" What ya mean if it's walkin around on four legs what elze is it good for !Nuff said. Only write about things we can eat CNN! When will you learn this Basik principle. I told ya twice now, get a gri... more
  • RealValues
    No u don't brew the beer, I do. I am real values (cnn's staff nods in unison in the background), I am the brewmaster.U: u look like a green oblong turd. I think we have to put you in xfiles. HihihihihiBwaahahaa. Looooo. But wait. IS that. Oh yez. But transparent, oh man they Robotz. Busy on street G... more
  • ibrewthebeer
    wow. real values, you aren't very funny and you're not contributing to the conversation. why even bother wasting our time.
  • Guest
    "Only after the last tree has been cut down, Only after the last river has been poisoned, Only after the last fish has been caught, Only then will you find that money cannot be eaten."
  • RealValues
    I strongly disagree. I had five dollars with some toast once. Added a most interesting flavour. Burrrp. I have it all the time on my egg sandwiches! Burrp.
  • carbonscam
    Cryosphere is tracked by university of Illinois, you can find a graph of global sea ice since 1979 when records began, the annual cycle expansion and contraction and area of sea ice isn't deviating from the 30 year period satellites have been tracking it. arctic.atmos.uiuc.edu/cryosphere/IMAGES/glob... more
  • DC2003
    Agreed! Appearently you have no idea how to read the graph you presented. The gray line indicates the level of sea ice for a given period of time. The blue line that you see gradually dropping off lower & lower is the actual sea ice measurements. Same with the red at the bottom .... notice tha... more
  • carbonscam
    That graph looks pretty steady to me.. so what indicates otherwise
  • hedzed
    Great graph. Apparently you can't read it. It is more supportive of AGW than your position. What I don't get is why you (and others clamoring in media-space) are trying to turn this into a controversy? What's in this for you guys? Does it pay well? Are you afraid of new opportunities? I don't get yo... more
  • 012345
    its pity to level of arrogance and ego with the people with power and money..they should understand finally they are also humans ..now CNN get ready to delete all my comments as usual...
  • 012345
    Mr. Ban ki Moon i have given you answer in a very simple language, 9 years before, you ignored and still ignoring..because those answers were not provided by americans or white skin? what ever i have already mentioned that there is only one key and scientifically this cannot be solved. you take your... more
  • profitwho007
    What’s crazy is that most of you think we can DRILL, BURN AND DIG OUR WAY OUT OF THIS MESS! The truth is the world will not act on Global warming until a major disaster like a Cat 5 Mega storm, methane burp over Iceland or solar flare that will spike world temp. That spike will flip the world upside... more
  • carbonscam
    Al gore is a scam artist who jumped on the band wagon. Anthropogenic global warming goes back to the early eighties and the Club of Rome who came up with the idea. AGW is junk science, the data shows its just not happening. It is totally discredited but the media carries on like we still believe thi... more
  • DC2003
    Sorry dude ... but Monckton is barely a journalist and "Wanna-be" politician ... kinda like Palin. He has no scientific credibility whatsoever. So we're all still waiting on your "peer-reviewed" scientific facts that you've based your opinion upon! Are you gonna impress us all with the fake reports ... more
  • carbonscam
    Anonamoose, Terapod, - Rather than me spinning my wheels on this comments page I recommend you watch the documentary "The Great Global Warming Swindle", you can find it on on youtube in nine parts. Also presentations given by Christopher Monckton - search "Lord Christopher Monckton on Climategate "... more
  • Tetrapod
    Do some ACTUAL research on this. There is almost TOTAL consensus on the reality of Anthropogenic global warming among climatologists - you know, the people who are actually experts on the subject of climate, the ones that study the climate as their spezialised field of science. Then look at the sour... more
  • Anonamoose
    ok, so you've attacked the messenger (argumentum ad hominem), now can you please provide the peer-reviewed scientific sources for your data that indicates AGW is junk science? Because if it is, you can bet there are climate and earth scientists who would like to be the ones how came up with a bette... more
  • carbonscam
    Club of Rome is a global think tank, nothing to do with rome.

    alvitdk - thanks for your two words, do you know anymore ?
  • profitwho007
    Rome fell you forgot! Victim of its own Technology.
  • alvitdk
    two words, ignorant moron!
  • Ninjasqwrll
    WHAIT! The manbearpig is here run!
  • whoknows911
    "15000 Scientists have signed paper saying global warming is NOT happening" google search it. Search the truth about global warming and not what puppet Al Gore tells you.
  • Anonamoose
    Yeah, uh, not true. Sorry. By the standard provided in the petition, I am also a scientist. I'm a doctor of moosology. I'm self-accredited, whichj is perfectly acceptable in some countries. How about we get some real scientists to publis, in a peer reviewd journal like "Science" or "Nature" or s... more