Human-driven warming of ocean temperatures increased the maximum wind speeds of every Atlantic hurricane in 2024, according to a new analysis released recently.

Key Findings

• Human-Driven Warming & Hurricane Intensification:
• • Ocean Warming: Human-induced climate change is increasing ocean temperatures, intensifying Atlantic hurricanes.
  • Impact on Wind Speeds: All 11 hurricanes in the Atlantic during the 2024 season saw maximum wind speeds increase by 9 to 28 mph due to record ocean temperatures.
  • Global Warming’s Role: CO₂ emissions and other greenhouse gases are raising sea surface temperatures worldwide, fueling stronger storms.

Regional Impact – Gulf of Mexico

• Temperature Rise: Sea surface temperatures in the Gulf of Mexico were 1.4°C hotter than in a world without climate change.
  • Result: Warmer waters act as fuel for intensifying hurricanes, leading to more destructive storms.

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Examples of Intensified Hurricanes

• Debby & Oscar: Both intensified from tropical storms to hurricanes due to warmer sea temperatures.
• Milton & Beryl: Escalated from Category 4 to Category 5 (most severe) due to climate change.
• Helene: Increased from Category 3 to Category 4.

Impact on Destructive Potential

• Saffir-Simpson Scale:
• • Each increase in hurricane category correlates with a fourfold increase in destructive power.
  • Category 5 storms are the most powerful and devastating.

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