Air pollution also has a significant influence on hurricane formation, according to a new study.
CLIMATEWIRE | Hurricane activity is shifting worldwide in large part because of climate change. Cyclones are getting stronger, intensifying faster, dumping more rain and migrating into different regions of the oceans.
At the same time, pollution levels have risen across much of South and East Asia. And that’s had an unexpected influence as well. Tropical cyclone activity has declined across the western North Pacific. Still, the new research, published yesterday by NOAA cyclone expert Hiroyuki Murakami, is one of the first to investigate the specific physical links between aerosols and hurricanes all over the globe, with the help of climate models.
In the western North Pacific, on the other hand, increasing pollution levels had a different kind of influence. They had a cooling effect on the Asian continent, which caused a weakening of the region’s monsoon winds. The result: a decrease in the formation of tropical cyclones.
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