Your opinions are important to us. "There are other trends we noticed in the satellite data that tell us how the Arctic fire regime is changing and what this spells for our climate future.". "We need new permafrost- and peat-sensitive approaches to wildland fire fighting to save the Arctic—there's no time to lose.". These extensive changes have severe consequences for global climate. In June, Russia’s aerial forest protection service reported that 3.4m acres of Siberian forest were burning in areas unreachable to firefighters. "Pollution and smoke doesn't know about international boundaries, those fires can affect a much larger population, thousands of kilometers away," he added. Fire from a previous growing season can smolder in carbon-rich peat underground over the winter, then re-ignite on the surface as soon as the weather warms in spring. Though experts said the fires' ignition sources were uncertain, some fires earlier in the season are thought to have been so-called "zombie fires" -- blazes also known as holdover fires -- which can burn at low temperatures underground, and could have been alight during the winter. part may be reproduced without the written permission. "Last summer we discovered from our data that there was very persistent fire activity in the Arctic circle, particularly in the Siberian Arctic," Mark Parrington, senior scientist at CAMS, part of the European Centre for Medium-Range Weather Forecasts, told CNN. Giant sinkholes appear as wildfires rage near Siberia, Deadly California wildfires scorch more than 1 million acres with no end in sight, A firefighter loses his home while battling the California wildfires. More than half of the fires detected in Siberia this year were north of the Arctic Circle on permafrost with a high percentage of ground ice. The fires, mostly situated in California and Colorado, are thought to have been caused by lightning, according to the monitoring service. The peak of the Arctic fire season was in July and early August, the data showed. As a result, said lead author Dr. Jessica McCarty, a geographer and fire scientist at Miami University, "Arctic fires are burning earlier and farther north, in landscapes previously thought to be fire resistant.". The severity of the 2020 Arctic fires emphasizes an urgent need to better understand a switch in Arctic fire regimes.
"Nearly all of this year's fires inside the Arctic Circle have occurred on continuous permafrost, with over half of these burning on ancient carbon-rich peat soils," said Dr. Thomas Smith, a fire scientist at the London School of Economics and Political Science and a coauthor of the study.
As well as disrupting the lives and livelihoods of Arctic residents, these features are associated with more greenhouse gases moving from where they are trapped in soils into the atmosphere. Your feedback will go directly to Science X editors. "It's not just the amount of burned area that is alarming," said Dr. Merritt Turetsky, a coauthor of the study who is a fire and permafrost ecologist at the University of Colorado Boulder. Analysis performed by Smith, covering May and June of this year, suggested that about 50% of the fires in the Arctic Circle were burning on peat soils, with the vast majority of the fire activity occurring in eastern Siberia.
The latest data, provided by the EU’s Copernicus atmosphere monitoring service, shows that up to 24 August 245 megatonnes of CO2 had been released from wildfires this year. Fires in the Eastern Federal District of Russia between June and August emitted approximately 540 megatonnes of carbon dioxide -- overtaking the previous total highest emissions dataset, recorded in 2003. Forests are estimated to cover at least 256,107 hectares in Yakutia -- 83.4% of its whole territory. “In some respects [the data] has been similar to 2019 in terms of the dry and warm conditions in the Siberian Arctic. This could prove hazardous to both local populations and those further afield: Wildfire smoke contains a number of pollutants including carbon monoxide, nitrogen oxides, volatile organic compounds, and solid aerosol particles. (CNN)Wildfires raging in the Arctic Circle smashed last year's records for carbon dioxide emissions, according to scientists at the Copernicus Atmosphere Monitoring Service (CAMS). A Russian plane fire-fighting in the Trans-Baikal national park in southern Siberia.
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