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Updated 9 December 2005
Images from Our Changing Planet FY 2006

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ocp06-fig7

Figure 7: Projected Frequency of Intense Hurricanes. Via a high-resolution version of the GFDL hurricane prediction system, the model-projected increase in frequency of intense hurricanes can be seen by comparing the "control" simulation of a climate model run with present-day levels of greenhouse gases (yellow circles) to a simulation corresponding approximately to the year 2080 in which carbon dioxide levels were increased by 1% per year (brown circles). Category 4 hurricane wind speeds range from 131 to 155 mph and Category 5 wind speeds exceed 155 mph. Credit: T. Knutson, NOAA/ Geophysical Fluid Dynamics Laboratory.

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