Polar Waters Acidifying

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The increasing acidity of the world ocean is a threat to marine species, says world-renowned Antarctic marine biologist Jim McClintock, who’s ongoing research explores the chemical defenses of polar marine organisms and impacts of ocean acidification on marine invertebrates. Carbon dioxide sequestered from the atmosphere by the ocean is interfering with aragonite saturation seasonally in Arctic waters. The problem is predicted to become a constant in Arctic and Antarctic waters by 2050, seriously impacting marine life that builds shells or shell-like structures.

McClintock tells UAB:

“Existing data points to consistently increasing oceanic acidity, and that is a direct result of increasing carbon dioxide levels in the atmosphere; it is incontrovertible. The ramifications for many of the organisms that call the water home are profound. There is no existing data that I am aware of that can be used to debate the trend of increasing ocean acidification.”


McClintock and co-authors reviewed recent data on ocean acidification at high latitudes for an article (pdf) in the journal Oceanography, for an issue focusing on ocean acidification worldwide. McClintock also recently published research that revealed barnacles grown under acidified seawater conditions produce weaker adult shells.

McClintock Point, in Explorers Cove, Antarctica, was named for Jim McClintock in 1998.

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Truth #1: The chaos is the point.

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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.

Truth #4: When we go to work, we're in the fight.

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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