Historically warm temperatures are impacting weather patterns, leading to droughts, wildfires, and flooding. While many attribute these disasters to climate change, there is little evidence to suggest an increase in major Atlantic hurricanes over the past 170 years. Despite this, property damage from hurricanes continues to rise due to increased development along coastal areas putting more valuable property at risk. Factors such as flooding, storm surge, and increased rainfall rates contribute to the rising financial impact of hurricanes.
Atlantic hurricanes are relatively infrequent, with fewer than 10 occurring each year and landfalling hurricanes happening fewer than three times a year. Changes in hurricane occurrences or severity due to a changing climate require an extensive historical record, which may be influenced by factors such as storm naming, improved observation tools, and landfall patterns. Reanalyzing historical data dating back to 1851 has provided a better understanding of hurricane occurrences, although there is still some bias and undercounting of storms.
While warmer waters can fuel tropical cyclones, other atmospheric factors can counterbalance the effects of warmer seas. The Intergovernmental Panel on Climate Change (IPCC) does not provide definitive information on global hurricane trends, but research suggests that major landfalling Atlantic hurricanes are not increasing in frequency or severity due to climate change. However, there is evidence to suggest that storms may be intensifying faster and traveling slower, which are areas of active research.
It is important for businesses to understand the risks associated with hurricanes, especially in light of potential flooding from increased rainfall and storm surge. While climate science is complex, clarity is essential for businesses to protect their livelihoods. Lessons learned from past experiences with hurricanes can inform emergency response planning and preparations for future storms. Despite the lack of evidence supporting an increase in landfalling hurricanes, the focus should be on measures to mitigate the impact of hurricane-related flooding.
In conclusion, while climate change is impacting weather patterns and contributing to severe weather events, the evidence does not suggest a significant increase in major Atlantic hurricanes over the past century. Understanding the complexities of climate science and the factors influencing hurricane occurrences can help businesses and communities better prepare for future storms. By focusing on protecting against hurricane-related flooding and strengthening emergency response plans, businesses can adapt to the changing climate and mitigate the risks associated with hurricanes.
