barlevg writes: In a recent interview, former Vice President and environmental activist Al Gore made a bold claim, that man-made global warming was causing hurricanes to be formed of such severity that "they’re adding a 6" to the hurricane scale, going on to say that "The fingerprint of man-made global warming is all over these storms and extreme weather events." In response, the National Weather Service has responded that they have no plans to add a "doomsday Category 6" to their rating scale: "No, we’re not pursuing any such change. I’m also not sure who VP Gore means by 'they,'" also noting that "Category 5 has no ceiling: it includes hurricanes with top sustained winds of 157 mph and higher." Furthermore, a recently leaked United Nations climate assessment claims only “low confidence” of a link between human activity and increased hurricane severity and that this is likely due to increased human settlement in coastal areas and other regions vulnerable to natural disasters.
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