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Science Quickly

Methane-Eating Microbes May Mitigate Arctic Emissions

Science Quickly

Scientific American

Science

4.2639 Ratings

🗓️ 19 August 2015

⏱️ 2 minutes

🧾️ Download transcript

Summary

A newly discovered strain of bacteria found in Arctic permafrost harvests methane from the air—meaning it could help mitigate the effects of warming. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Understanding the human body is a team effort. That's where the Yachtel group comes in.

0:05.8

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

0:11.0

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

0:19.6

To learn more about Yachtolt, visit yawcult.co.

0:22.7

J-P. That's Y-A-K-U-L-T dot CO.J-P. When it comes to a guide for your gut, count on Yacolt.

0:33.6

This is Scientific American's 60-second science. I'm Christopher Entagata. Got a minute?

0:39.5

The Arctic's warming twice as fast as the rest of the planet, on average. And as permafrost

0:45.0

becomes, well, not so perma, microbes are warming up, feasting on organic compounds in the

0:51.4

thawed soil. The microbes then belch methane, a potent greenhouse gas,

0:56.6

meaning that the warming Arctic could become a big source of carbon pollution. But maybe it won't,

1:02.8

because it turns out there are also a lot of microbes that like to snack on the methane waste

1:07.0

their buddies emit. In fact, some 90% of the methane bubbling up through Arctic soils

1:11.7

is already soaked up this way. Now researchers report that they've found a new strain of methane-eating

1:17.9

microbes in soil samples from Axel-Hyberg Island in the Canadian high Arctic. The soils on the island

1:24.3

are not rich in carbon, meaning there's not a lot of methane waste.

1:28.2

So these still unnamed bacteria instead harvests the gas straight out of the air.

1:33.3

And as that air warms up, they're getting hungrier.

1:36.8

The scientists project that as temperatures rise over the next century,

1:40.1

the bugs could gobble up anywhere from five to 30 times the amount of methane they eat today.

1:45.8

The study appears in the Ismi Journal.

1:48.5

Most Arctic permafrost, 87%, is actually carbon-poor mineral-y stuff, like the soil on Axel-Hyberg

1:55.3

Island, meaning much of the Arctic could soon be sucking up methane.

...

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