Global warming: severe hurricanes occur in the USA 3,3 times more often than 100 years ago
According to a new study, large devastating hurricanes hit the United States three times more often than a century ago. Writes about this Fox Business.
Experts usually measure the damage caused by a hurricane, summing up how much damage it caused to people and cities. This approach does not include severe storms that affect only sparsely populated areas. A Danish research team came up with a new dimension that took into account how big and strong the hurricane was, and not how much damage it brought.
Looking at 247 hurricanes that hit the United States since 1900, researchers found that 10 percent of the worst hurricanes, with a total devastation area of more than 467 square miles (1209 square kilometers), occur 3,3 times more often.
According to lead author of the study, Aslak Grinstead, 8 of 20 hurricanes with the largest area of total destruction since 1900 of the year have occurred over the past 16 years.
Of these, two hurricanes stood out: Harvey 2017 of the year with a total destruction area of 4570 square miles (11 835 square kilometers) and Katrina 2005 of the year for 2942 square miles (7621 square kilometers). The average number was 159 square miles (411 square kilometers) - this means that the damage from Harvey was 30 times greater than the average from a severe hurricane.
Climatologists have predicted that higher temperatures in the oceans and atmosphere as a result of burning coal, oil, and other fuels create more extreme weather conditions and hurricanes.
“Their result is consistent with the expected changes in the frequency of the most severe hurricanes, as well as an increase in the frequency of very slow storms that land on land in the United States,” said Jim Cossin, a scientist at the National Oceanic and Atmospheric Administration.
However, other experts were not so convinced. Hurricane researcher at Colorado State University Phil Klotsbach says that his study of the most severe storms in the United States based on atmospheric pressure does not show an increase.
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