Arctic Now Becoming Emitter Of Carbon Dioxide, That Dreaded Greenhouse Gas

In this photo from U.S. Bureau of Land Management,
permafrost, which has been increasingly thawing in
the Arctic, erodes into the Beaufort Sea.

Once upon a time, the Arctic used to be the place where carbon dioxide went to die.  

At least it seemed that way. It would get stored in the permafrost, seemingly locked in that icy prison never to bother us in the atmosphere again. never to bother us in the atmosphere again. 

Back in the day, that didn't matter much anyway.  There wasn't so much carbon dioxide in the air, so no real climate change. At least that's the way it was a century or more ago.

Now, just when we don't need more greenhouse gases like carbon dioxide in the atmosphere, the Arctic is starting to belch it out, according to new information from NOAA. 

 The world has warmed up enough through climate change to alter the ecosystems of the Arctic, and that is prompting that stored carbon in the permafrost to come out of hiding to join the world's hot and getting hotter party. 

The news comes the 2024 Arctic Report Card, researched and written by 97 scientists from 11 countries.

NOAA says

"After storing carbon dioxide in frozen soil for millennia, the Arctic tundra is being transformed by frequent wildfires into an overall source of carbon to the atmosphere, which is already absorbing record levels of heat-trapping fossil fuel pollution."

Wildfires in the areas of North America with permafrost have increased in the past couple decades. The report says that since 2003, emissions from polar wildfires averaged 207 million tons of carbon each year. That's more than the annual carbon emissions from nations like Argentina and Austria. 

Arctic wildfires are only a relatively small piece of the problem.  The permafrost is melting more and more, releasing carbon into the air instead of storing it. That's why, for the first time, the Arctic is making the climate change problem worse, not better.

I found a good explanation of this at NPR:

"Twila Moon, lead editor of the Arctic Report Card and  scientist at the National Snow and Ice Data Center, likened permafrost to chicken in the freezer: As long as it stays frozen, microbes stay away.

'Once you have that chicken out of your freezer, it's thawing and all those microbes are getting to work, breaking down the chicken, making it rot,' she said. 'The permafrost is really doing the same thing.'"

There was the tiniest glimmer of good news from Greenland, but it was definitely nothing to get the Champagne and confetti out to party. 

The Greenland Ice sheet mass loss was the lowest since 2013, mostly because it snowed more than usual up there. Still, the ice shoot lost somewhere in the broad range of 22 and 77 billion tons of ice last year. 

That was enough to raise the global sea levels by 0.15 millimeters. Which is too small for anybody to notice. But if you add in all the other sources of sea level rise, and compound them year after year, it starts to make a big difference. 

This report demonstrates that the Arctic has changed much in just a few decades. There's no way it's going to stay as it is  now, either. It's going to get worse.

The Arctic is the fastest warming region of the world.  There's no signs, and no reasons for that warming to slow down as fossil fuel emissions keep cranking.  Since the Arctic is also adding those emissions, if anything, the pace at which the Arctic deteriorates will also increase.