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  • 3 months ago
We all know that leaves on trees sequester CO2, taking in the carbon dioxide and releasing oxygen for us to breathe. However, experts now say, tree bark could be sucking in a large amount of another dangerous climate-related gas.

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00:00We all know that leaves on trees sequester CO2, taking in the carbon dioxide and releasing oxygen
00:09for us to breathe. However, experts now say tree bark could be sucking in a large amount
00:14of another dangerous climate-related gas. When leaves take in CO2, they undergo photosynthesis,
00:19trapping the carbon they pull out of the air in their wood and bark. And a new study has
00:24demonstrated that that very bark is taking methane out of the air. Experts attribute
00:28around a third of our planet's warming to methane. And this new find is surprising,
00:33considering wetlands have long been known to be a methane emitter. However, less research has been
00:37done into the most common kinds of forests, those which sit on dry land in soil that drains naturally.
00:43So how much is pulled out of the air already? The new study estimates that between 25 to 50 metric
00:48tons of atmospheric methane is sequestered in the bark of trees every year, finding the tropical
00:53forests are the biggest suckers. With the researchers noting that means our planet's forests are better
00:58climate change preventers than previously thought by around 7 to 12 percent.
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