NSIDC director: "The volume of ice left in the Arctic likely reached the lowest ever level this month." - Serreze: "I stand by my previous statements that the Arctic summer sea ice cover is in a death spiral. It's not going to recover."

"We are proud of being the first sailing vessel, together with "Peter 1st", that ever has sailed through both the Northeast and Northwest Passage in one short Arctic summer."

This amazing Arctic melt season is finally coming to an end.  We just about equaled 2008 for the second lowest sea ice extent and area.  But volume matters more — and here it looks like we're setting the record.

We've seen that National Snow and Ice Data Center (NSIDC) scientists have tracked a sharp drop in oldest...