One -third of the Arctic Tundra, Forest, and Wetlands is the source of carbon emissions. New study We discovered that thousands of carbon storage ended thousands of years in part of the north where global heating was frozen.
For thousands of years, the Arctic Landscology functions as a deep -frozen cozy of carbon of planets, and has a huge amount of potential emissions in permanent frozen soil. However, the ecosystem in this area is increasing. Contributor to global heating When they release more joints2 New research for the atmosphere where the temperature is rising Published in Nature Climate Change Conclusion.
More than 30 % of this area was a net source of CO2According to the analysis, it increased to 40 % when the emissions from the fire were included. By using surveillance data from 200 research sites between 1990 and 2020, this study shows how the Northern Pole, wetlands, and tundra have changed due to rapid warming. I am.
“This is the first time I have seen all the tundra in such a large -scale shift, and Sunatari, a co -author and chief researcher in the Woodwell Climate Research Center, said: Is stated.
Despite the greenery of the Arctic Circle, there is a shift. “One of the places where I work in Alaska, if the permanent frozen soothes is thawed, the plants will grow more, so you can get the rise in carbon storage,” Natari said. “But permanent frozen soil continues to melt and microorganisms take over. You have this really big carbon pool on the ground, you see things Like the ground collapse。 You can visually see changes in the landscape, “she said.
The Arctic Circle hit an unfortunate climate milestone
This study is increasingly concerned about scientists about the natural process that regulates the weather of the earth, and is affected by the rise in temperature. At the same time, the sea of ​​planetary, forests, soil, and other natural carbon sinks Absorbs Half of all human emissionsHowever, there are signs that these sinks are nervous.
Siberia, Alaska, Scandinavian countries, and the Arctic ecosystem, which spans Canada, has accumulated carbon for thousands of years and cools the atmosphere of the earth. In the world of global warming, researchers say that the carbon cycle in the area is beginning to change and need better monitoring.
Anna Vilcala, the master of the study, stated: “There is a lot of carbon in the Arctic soil. It’s nearly half of the earth’s soil pool, much more than in the atmosphere. Ideally, there is a huge potential reservoir that should stay on the ground.
“As the temperature gets warmer, the soil gets warmer. Most soils are completely frozen throughout the year in permanent frozen soil, but now the temperature is warm and has more organic matter, carbon. Is released in the atmosphere, which is an important driver.
