Arctic Speed-Melt Record

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Although 2008 did not set a record for minimum sea ice it did set a record for speed melting. Arctic sea ice declined at a rate of 32,700 square miles a day in August. That’s about the size of Maine. Every day. And that’s compared to 24,400 square miles a day lost in August 2007—the record holder for minimum sea ice.

The 2008 results were surprising, says NASA, because last winter had near-normal ice cover. “We saw a lot of cooling in the Arctic that we believe was associated with La Niña,” says Joey Comiso of NASA’s Goddard Space Flight Center in Maryland. “Sea ice in Canada had recovered and even expanded in the Bering Sea and Baffin Bay. Overall, sea ice recovered to almost average levels. That was a good sign that this year might not be as bad as last year.”

But alas the sprint in August—the fastest-ever melt—undid the gains of the winter. Here’s what it looked like:

“Based on what we’ve learned over the last 30 years, we know that the perennial ice cover is now in trouble,” Comiso says. “You need more than just one winter of cooling for the ice to recover to the average extent observed since the measurements began. But the trend is going the other way. A warming Arctic causes the surface water to get warmer, which delays the onset of freeze up in the winter and leads to a shorter period of ice growth. Without the chance to thicken, sea ice becomes thinner and more vulnerable to continued melt.”

Julia Whitty is Mother Jones’ environmental correspondent, lecturer, and 2008 winner of the Kiriyama Prize and the John Burroughs Medal Award.

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SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

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Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

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