A recent increase in the intensity of tropical cyclones in the Arabian Sea may be a side-effect of increasing air pollution over the Indian subcontinent, a new multi-institutional study has found. Traditionally, prevailing wind-shear patterns prevent cyclones in the Arabian Sea from becoming major storms. However, a paper appearing in a recent issue of the journal Nature suggests the weakening of the winds aloft has enabled the formation of stronger cyclones in recent years, including storms in 2007 and 2010 that were the first recorded ever to enter the Gulf of Oman.
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