Human activity more than doubles Arctic fire occurrence, satellite analysis suggests
Fires in the Arctic are not solely a regional issue, as shown by the hazy skies in Switzerland last summer despite otherwise sunny weather. Smoke from major fires in northern Canada crossed the Atlantic and reached Europe. Until now, large-scale studies of Arctic tundra fires have focused primarily on rising temperatures and drought as the main drivers. The role of human activity has received…
Human activity has significantly increased the frequency of fires in the Arctic over the past decade, according to a new study led by researchers at the University of Zurich. The analysis, which examined satellite data between 2001 and 2013, revealed that fires occurred 2.5 times more frequently in areas with artificial nighttime light compared to similar climatic regions without such illumination.
While climate factors like temperature, moisture, and drought still play a major role in fire occurrence, the study underscores the importance of human activity as a contributing factor. Lead researcher Gabriela Schaepman-Strub emphasized that this finding highlights the need for interdisciplinary Earth system science that considers human systems as part of the interconnected environment.
The researchers also noted significant regional differences in fire occurrence near lit areas, suggesting that fire management and prevention measures near infrastructure could help reduce ignition risks and minimize fire damage in these regions.
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