One of the most carbon-rich environments on Earth, a recent study has found boreal forests are burning more every year, representing 'a time bomb of carbon,' according to one researcher.
Boreal forests and their peatlands are one of the largest natural absorbers of carbon on the planet. But as climate change heats up northern latitudes, that carbon sink is increasingly at risk of going up in smoke.
Davis, along with 17 other researchers involved in the global study, used satellite data to measure carbon dioxide and carbon monoxide emissions over the past two decades. In 2021, they found wildfires emissions spiked two and a half times higher than the average going back to the turn of the millennia, when satellite measurements began.
“The numbers are staggering,” she said, “but not all together surprising given that we’ve seen over the last decade increasing wildfires — not just in Canada but across the boreal in general.” Canadian boreal holds double the carbon of world’s oil reserves Boreal forests are the most carbon-dense terrestrial ecosystem in the world. A hectare of boreal forest stores double the carbon found in a hectare of tropical forest. That means that in Canada alone, there is twice as much carbon dioxide locked up in the boreal biome as all the world’s oil reserves combined, says Skene.
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