Global warming has added more moisture to the atmosphere

Super-storm Sandy has devastated parts of the US east coast, a 13ft tidal surge hit Manhattan, with 63 people dead in America (and more than 60 dead even before the super-storm hit USA)  and the estimated cost of the storm damage put at around $40 billion. Hurricane Sandy, a category 2 hurricane on 25th October but weakened over 2 days and on October 27th a category 1 hurricane; but the largest Atlantic hurricane in diameter on record.

Ninety-six percent of the “major” hurricanes occur from August to October when the warmer waters help to feed the strength of the hurricanes. Warmer temperatures, leads to more precipitation, precipitation means more water vapour and moisture, that is one of the basic facts about global warming. Sea surface temperatures off the Mid-Atlantic coast were near a record high in September, and 2.3 degrees Fahrenheit above the long term average. So with the tidal surge, the tropical storm and hurricane all working together, it resulted in massive damage.

Without the effects of climate change, its likely that hurricane Sandys consequences would have been much less.


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