Robert Scribbler--“Over the past 10 days, the rate of sea ice extent loss in the Arctic has slowed down somewhat. And as a result sea ice extent measures, though maintaining in record low ranges, are much closer now to the 2012 line. Low pressure systems have come to dominate the Arctic Ocean zone. And the outwardly expanding counter-clockwise winds from these systems have tended to cause the ice to spread out and to thin. In the past, such events were seen as an ice preserving feature. But this year, there’s cause for a little doubt.
“The first cause comes in the form of record Arctic temperatures for all of 2016. As Zack Labe shows in the compelling graphic below, not only has the first half of 2016 been a record warm six months for the Arctic, it’s been a record warm half-year like no other.
(The first half of 2016 is about 1.5 C hotter in the Arctic than the previous record hot year. It’s a huge jump to new record warmth that should cause pretty much everyone to feel a deep sense of concern about this sensitive region. Image source: Zack Labe.)
“And if extra heat is guaranteed to do one thing — it’s melt frozen water. We can see that in the current near record low snow coverages for the Northern Hemisphere. We can see it in the fact that — despite what would be ‘bad melt’ weather conditions such as cloud cover and low pressure systems dominating the Arctic during the middle of June — Arctic sea ice extents are still in record low ranges and Arctic sea ice volume continues to track just below 2012’s record low trajectory. And we can certainly see it in the fact that despite the clouds that would normally promote cooler Arctic conditions during this time of year, surface temperatures have remained well above normal for the majority of June.
“Overall, these conditions are unprecedented for the Arctic. And, in microcosm, we can tell a little bit of this story of heat by tracking the life of a ten mile wide hunk of ice that was recently blown away from the ice pack and into the warming waters north of Svalbard.” Continue reading: Ten Mile Wide Chunks of Arctic Sea Ice are Disintegrating North of Svalbard | robertscribbler