Five years of testing at sites across the Arctic tracked seasonal fluctuations and sources of a climate pollutant that contributes to global warming and ice melt.
When soot from fossil fuel combustion and wildfires drifts onto the Arctic ice and snow, it helps feed a spiraling cycle of warming, melting ice and rising sea level.
New research carried out at remote locations across the Arctic shows that most of the soot—also known as black carbon—is coming from coal power plants, cars and trucks and factories. The findings could help countries begin to control this short-lived climate pollutant.
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