Polar bear habitat update at mid-August

Oddly, after light winter ice coverage on Canada’s east coast and a slightly earlier sea ice breakup on Hudson Bay, the Arctic melt season has stalled. That’s not my opinion but the observation…

Greenland’s 2021 spring: more snow, less melt

Surface melt and total melt-day area for the Greenland Ice Sheet at the end of the 2021 spring season was below the 1981 to 2010 average. Snowfall and rain (minus…

“Where’s the sea ice?” Right where it’s been for most of the Holocene.

Guest “geological perspective” by David Middleton This is sort of a sequel yesterday’s post: Where’s the sea ice? 3 reasons the Arctic freeze is unseasonably late and why it matters.…

Where’s the sea ice? 3 reasons the Arctic freeze is unseasonably late and why it matters

I’ve watched the region’s transformations since the 1980s as an Arctic climate scientist and, since 2008, as director of the National Snow and Ice Data Center. I can tell you,…

Winter sea ice maximum extent on March 5 was the highest since 2013

From Polar Bear Science Posted on March 24, 2020 | Winter sea ice maximum extent on March 5 was the highest since 2013 The most positive thing that US National…

Back to the Anthropocene! Arctic Sea Ice Edition

Guest geological story-telling by David Middleton Do you ever get tired of smarmy, snot-nosed articles like this? Obituary: Remembering the Holocene Epoch BY CHRIS WILSON AUGUST 29, 2016 The Holocene…

2019 Arctic Sea Ice Minimum Tied for Second Lowest on Record

From NASA Global Climate Change 2019 Arctic Sea Ice Minimum Tied for Second Lowest on Record By Maria-José Viñas, NASA’s Earth Science News Team The extent of Arctic sea ice…

Another Dis-alarming Analysis of Arctic Sea Ice

Guest post by David Middleton Anthony recently posted an excellent Arctic sea ice analysis by Ron Clutz.  In a similar vein, I decided to look at Arctic sea ice from…

Sea Ice News Volume 4 Number 5: No ice free Arctic this year – it appears that Arctic sea ice has turned the corner

It looks like the Maslowski Countdown has ended early and there will be no “ice free Arctic” as predicted this year. From NSIDC, which has a 5 day average in…

"Watching the Deniers" makes hilarious goof while accusing WUWT of "doctoring" NSIDC images

UPDATE: Mr. Marriott, perhaps fearful of legal action due to his own stupidity on the matter, has dropped the claim of “doctoring” and has also changed the title to remove…

Avaaz! Save the world from a slushy death, just £2

People send me stuff. This is an email solicitation claiming that if you send Avaaz £2 a week (About $3.07 USD at current exchange rate) they’ll somehow be able to help…

Arctic Ice and the DMI deficit

There’s been some interest in these before and after graphs highlighted by the blog “sunshinehours” here. Arctic Sea Ice Not As Bad As They Claimed??? DMI To me it looked like…

Sea Ice News Volume 3 Number 14 – Arctic refreeze fastest ever

After all of the news about a minimum record ice extent last month, this is interesting. As we know when water loses its ice cover, it allows a lot of…

Sea Ice News Volume 3 number 13 – 2012 Arctic sea ice minimum reached, it's all gain from here

I’ve been watching the JAXA sea ice data on the WUWT sea ice page intently for the last few days. Click to enlarge. I was ready to call the minimum…

Sea Ice News – Volume 3 Number 11, part 2 – other sources show no record low Arctic ice extent

Earlier today in part1, I posted about the new record low claimed by NSIDC: Sea Ice News – Volume 3 Number 11, part 1 – new Arctic satellite extent record.…

Sea Ice News Volume 3 Number 7 – The next ARCUS Sea Ice Outlook forecasting poll for 2012 is online

NOTE: Poll closes at 12PM PST, Thursday, July 5th. First, in case you missed it over the weekend, the WUWT Sea Ice page has gone through an upgrade. A number…

Sea Ice News Volume 3 Number 6 – Sea Ice Outlook forecasting contest for 2012 is online

First some news on the status of the WUWT Sea Ice Page. The JAXA imagery, which has been DOA ever since the failure of the AMSRE instrument on the AQUA…

Sea Ice News Volume 3 Number 5 – SEARCH Sea Ice Outlook forecasting contest for 2012

The Arctic sea ice extent forecasting contest is on again.  As before I’ll allow readers to submit their best estimates in a poll, and I’ll submit those results as we’ve…

"…the Arctic Ocean could be nearly ice-free at the end of summer by 2012"

Its always important to remember what has been predicted by the elders of science, and to review those predictions when the time is right.  In four months, just 132 days…

Yet another error in NSIDC graphs?

UPDATE: problem solved, see below. I wonder if NSIDC actually looks at their own output from day to day? I know that sounds harsh, but the reality is that bloggers…

Sea Ice News Volume 3 Number 4: NSIDC Arctic sea ice extent touches the normal line

There was a lot of controversy leading up to this moment, as we covered previously on WUWT where NSIDC put a new trailing average algorithm online with no notice, and…

NSIDC fixes their Arctic Sea Ice graphing problem

As I mentioned yesterday, NSIDC had an oops moment, but with the help of skeptical blogs, was notified of the problem and responded timely and appropriately. They posted this update…

NSIDC's oops moment – uncoordinated changes make for an interesting 24 hours

Many of you are probably aware of some strange goings on over at The National Snow and Ice Data Center (NSIDC) with their Arctic Sea ice graph, specifically, this one…

Sea ice variability within and outside the Arctic Circle

The essay below is a result of some collaboration between Jeff Condon and myself. I’ve been wondering for quite some time if there was any trend difference between the truly…