Arctic Sea Ice

Category archives for Arctic Sea Ice

On April 14th, 1912, the RMS Titanic collided with an iceberg during her maiden voyage. The collision occurred at 11:40 PM ships time, and by 2:20 AM the ship broke apart and foundered with over a thousand people still on board. Of the 2,224 people on board just over 700 were rescued. There have been…

Arctic Death Spiral

The latest, updated, Arctic Death Spiral graphic from Andy Lee Robinson …

Earth’s northern ice cap is heating up and melting down at an alarming, not previously predicted, rate. A paper just out in Wiley Interndisciplary Reviews: Climate Change, by Josefino Comiso and Dorothy Hall looks at recent historic transformations in the Arctic using satellite imagery, mainly from 1979 to the present. The decline of Arctic ice…

I’m going to update this graph every now and then. There are 12 lines on this graph. The colorful squiggles up along the top are the first ten years of Arctic Sea ice extent for the period for which we have really good data. So this is 1979 – 1988. There is reason to believe…

Above is the nifty interactive graphic from the National Snow and Ice Data Center showing sea ice extent in the Arctic for the current year (the lower squiggle). This year’s squiggle looks like a peak, and it is possible that Arctic Sea ice extent is now on the decline. Minimum extent is typically reached in…

Tracking Arctic Sea Ice

A few days ago I made a prediction for this year’s minimum Arctic Sea Ice extent. That’s still valid. Or not. Either way, it’s still my prediction. But looking at the ice over the last few days, we see that for the first time in a while the extent of ice estimated by the NSICD…

Peter Sinclair has tackled this difficult topic with an excellent video and informative blog post. The blog post is here, and I’ve pasted the video below. This is a complicated issue. The water problem in California is obviously made worse by increased demands from population growth and expansion of agriculture. Under “normal” (natural) conditions, California…

We are reaching the point where Arctic Sea ice tends to max out, in terms of extent (I will not be talking about volume here, though that is vitally important). Using data provided by the National Snow and Ice Data Center, I ran an informal “Science by Spreadsheet” analysis and came up with a prediction…

Everything is about ice these days, what with the Winter Olympics in full swing. Concerns that the temperatures at the mountain venue of Sochi would be problematically high have panned out; the lower parts of the downhill slopes are slushy and the bottom of the half-pipe is all bumbly wumply. Injuries and lost medal opportunities…

The Recovery of Arctic Sea Ice Extent

During the northern Winter, much of the Arctic is covered with sea ice. Some of this ice melts during the summer, then it regrows. Over recent years, the amount of ice loss in the summer has tended to increase, almost every year, year after year. In 2012 the loss of sea ice was extreme, falling…