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The Decline of Arctic Sea Ice
updated: Mar 18, 2017, 3:00 PM

Source: University of California Santa Barbara

UCSB climate scientist Qinghua Ding and colleagues quantify the contribution natural variability in atmospheric circulation to sea ice loss

The decline of Arctic sea ice in recent decades has occurred at a more rapid rate than predicted by most climate change models. Many scientists suspect that the deterioration results from a combination of global warming and other climate cycles.

A new study by UC Santa Barbara climate scientist Qinghua Ding has found that natural variability in the atmosphere over the Arctic Ocean is responsible for causing a substantial amount of summer sea ice loss. The findings appear in the journal Nature Climate Change.

"Anthropogenic forcing is still dominant, still the key player," lead author Ding, an assistant professor in UCSB's Department of Geography, said in reference to human activity. "But we found that natural variability has helped to accelerate this melting, especially during the past 20 years."

Read the full story here.

Comments in order of when they were received | (reverse order)

 COMMENT 764455P agree helpful negative off topic

2017-03-19 12:52 PM

FLICKA: Indeed. (I'll probably be sent to join you in the naughty comments corner.)


 COMMENT 764462 agree helpful negative off topic

2017-03-19 02:42 PM

The real problem getting everyone on board with this is that 40 years ago or so it the climate scientists were all about "global cooling." The pending new Ice Age just didn't develop.....not even close. Then the climate scientists start yabbing about "global warming"....again, not even close to the apocalyptic predictions these folks came up with. Ice caps have not disappeared as Al Gore famously predicted, and all of those low-lying islands are still above water. Okay....then these brainiacs come up with "climate change." Okay....climate changes, and what? What's the next thing for people to worry about. I'll tell you: volcanoes. Look it up....now volcanoes can really disrupt the climate.


 COMMENT 764472P agree helpful negative off topic

2017-03-19 05:29 PM

462 - You're way behind on the latest denial tactics. That "global cooling" canard was debunked long ago.

Get some facts that aren't "alternative":

real information


 COMMENT 764476 agree helpful negative off topic

2017-03-19 05:45 PM

472P: Healthy skepticism is fantastic, but you've got to remember that there are lots and lots (and LOTS) of people in Santa Barbara who actually wanted to paint a blue line around the areas of the city that were supposed to be under water right now. Well that idea was debunked, but still people will believe what they want to believe....it's just that one side always gets angry and tend to boil over when someone disagrees with them....that's one thing everyone can agree on. Personally, I'm worried sick that most people are not prepared for you-know-what....The Big One. Please people, have your emergency supplies ready and make sure your supplies are not so far out of date that when you open them they are unusable.


 COMMENT 764495P agree helpful negative off topic

2017-03-19 09:49 PM

Facts are facts, and nobody is entitled to his own set. The projections for sea level rise have a range - pessimistic to optimistic, and the blue line was based on a pessimistic projection. Many parts of the world got smart, and implemented carbon emission restrictions, which helped even more.


 COMMENT 764502 agree helpful negative off topic

2017-03-20 06:41 AM

Since the last ice age, the sea level has risen about 300 ft. Fred Flintstone was chiefly responsible for that.


 COMMENT 764646P agree helpful negative off topic

2017-03-20 04:46 PM

We're reaping the benefits of the decades-long Republican policy of denigrating science and education.


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