Over the Summer, a Spread of Thicker Arctic Ice

The National Snow and Ice Data Center released its summary of summer sea-ice conditions in the Arctic on Tuesday, noting  a substantial expansion of the extent of “second-year ice” — floes thick enough to have persisted through two summers of melting. The result could be a reprieve, at least for a while, from the recent stretch of  remarkable summer meltdowns.

According to the center, second-year ice this summer made up 32 percent of the total ice cover on the Arctic Ocean, compared with 21 percent in 2007 and 9 percent in 2008. The percentage of ice that was many years old, forming thick pancaked expanses, was at its lowest since satellite observations began 30 years ago. But that could change next year as the second-year ice adds mass through the long winter freeze. ...

Every once in a while I feel despair over the fate of the planet. If you’ve been following climate science, you know what I mean: the sense that we’re hurtling toward catastrophe but nobody wants to hear about it or do anything to avert it.

Fred R. Conrad/The New York Times

Paul Krugman

And here’s the thing: I’m not engaging in hyperbole. These days, dire warnings aren’t the delusional raving of cranks. They’re what come out of the most widely respected climate models, devised by the leading researchers. The prognosis for the planet has gotten much, much worse in just the last few years.