Clean air may lead to more hurricanes

Sarah Hofmann Contributor
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Stricter pollution controls may lead to an increase in tropical storms in the Atlantic Ocean, according to an article published Sunday in the journal Nature Geoscience.

The article, written by scientists from the Met Office Hadley Center in the United Kingdom, suggested that environmental protection laws will lead to more hurricanes for at least 20 years, reports the New Scientist.

Nick Dunstone of the Hadley Center explained that man-made aerosols lead to longer low-level clouds over the ocean. The clouds keep the water temperature cooler and therefore less likely to birth hurricanes.

Dunstone specifically said that pollution controls that reduce aerosols will produce “record numbers of tropical storms for the next decade or two.”

There also appears to be a direct correlation between the economy and hurricanes. During economic boom times, there is more pollution in the atmosphere due to industrialization, leading to lower numbers of hurricanes. Recession periods mean less aerosols and therefore more hurricanes.

This pattern has been seen with fewer hurricanes in the 1960s to the mid-1990s, versus higher numbers during 1930s through 1950s. The number drastically increased however in 1995 when aerosol bans went into effect. There were 28 hurricanes reported in 2008 and 19 every year since then.

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Sarah Hofmann