Brown cloud might be intensifying storms over Indian Ocean

A longstanding brown cloud of pollution over the Indian Ocean is causing cyclones to intensify in that region, according to a new study published this month in the journal Nature and involving researchers from multiple institutions, including the National Oceanic and Atmospheric Administration, or NOAA.After the apparent recent increase in the number and intensity of hurricanes in the Atlantic Ocean and Gulf of Mexico, including the devastation of Hurricane Katrina in 2005, climate watchers

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