Arctic Sea ‘Foaming with Methane’ as Permafrost Melts

Scientists have discovered the first evidence that millions of tons of methane, a greenhouse gas 20 times more potent than carbon dioxide, are being released into the atmosphere from beneath the Arctic seabed.  It’s not yet confirmed, but if it turns out to be true, it could be an extremely bad sign for the future of every living thing on earth.  Scientists believe that underground stores of methane, when suddenly released into the atmosphere, cause rapid increases in global temperatures.

From The Independent:

In the past few days, the researchers have seen areas of sea foaming with gas bubbling up through “methane chimneys” rising from the sea floor. They believe that the sub-sea layer of permafrost, which has acted like a “lid” to prevent the gas from escaping, has melted away to allow methane to rise from underground deposits formed before the last ice age.

They have warned that this is likely to be linked with the rapid warming that the region has experienced in recent years.

Methane is about 20 times more powerful as a greenhouse gas than carbon dioxide and many scientists fear that its release could accelerate global warming in a giant positive feedback where more atmospheric methane causes higher temperatures, leading to further permafrost melting and the release of yet more methane.

The area where the methane was discovered covers thousands of square miles of the Siberian continental shelf.

So, basically, the damage we’ve already done has led to the permafrost melting.  The permafrost had been keeping all of this methane from escaping.  As the methane escapes, it will accelerate global warming at such a dramatic pace that there might not be anything we can do to counteract the effects.

Of course, that doesn’t mean that we should stop all of our efforts to fight global warming – the opposite is true.  This news, if it’s confirmed, should light a fire under our collective asses and force us to get serious about the things that are causing global warming.  It might be too late, but isn’t fighting better than sitting around waiting for Mother Nature to squash us like ants?

Link [The Independent] via [WorldChanging]

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