Global Warming and Hurricanes: A Guide for Policymakers
- There has been a global decline in global hurricane frequency and intensity during the past 25 years.
- Hurricane Harvey in August 2017 is the first major hurricane to (category 3 or higher) to make landfall in the continental USA since Hurricane Wilma in 2005.
- S. hurricane frequency and intensity is at all-time historic lows.
- Hurricanes, including very severe hurricanes, have always occurred and always will. The existence of modest global warming will not change this.
- Global warming is causing more upper-level wind shear in places where hurricanes form and strengthen. This prevents hurricane formation and intensification, negating the impact of warmer oceans and modest sea-level rise for the fewer hurricanes that form.