Experiments in mini greenhouses show how the tiny organisms lurking underground in a 'sleepy biome' could be a contributor to climate change.
Climate change is warming the Arctic tundra about four times faster than the rest of the planet. Now, a study suggests that rising temperatures will spur underground microbes there to produce more carbon dioxide — potentially creating a feedback loop that worsens climate change.
The tundra is “a sleepy biome,” says Sybryn Maes, an environmental scientist at Umeå University in Sweden. This ecosystem is populated by small shrubs, grasses and lichen growing in cold soils rich with stored organic carbon. Scientists have long suspected thatMaes’ team included about 70 scientists performing measurements in 28 tundra regions across the planet’s Arctic and alpine zones.
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