Human-caused climate change boosted the destructive winds and rain unleashed by Hurricane Melissa and increased the temperatures and humidity that fueled the storm, according to an analysis released Thursday.Melissa was one of the strongest Atlantic hurricanes to make landfall and brought destructive weather to Jamaica, Haiti, Dominican Republic and Cuba, causing dozens of deaths across the Caribbean. Roofs were torn off of homes, hospitals were damaged, roads were blocked by landslides and crop fields were ruined.The rapid analysis by World Weather Attribution found that climate change increased Melissa’s maximum wind speeds by 7% and made the rainfall 16% more intense. The scientists also wrote that the temperature and humidity in which the storm intensified were made six times more likely due to climate change compared to a pre-industrial world.AdvertisementAdvertisementAdvertisementAdvertisementRapid attribution analyses are a type of research that study factors influencing an extreme weather event and explore what the event would have been like in a world without climate change. They are typically published days or weeks after an extreme weather event.Melissa slowly tracked across the region and drew in enormous amounts of energy from abnormally warm ocean water. The analysis reported ocean temperatures in Melissa’s path through the Caribbean were about 1.4°C (2.5°F) warmer compared to a pre-industrial climate.“Warmer ocean temperatures are effectively the engine that drives a hurricane … the warmer the ocean temperatures, the greater the wind speed a hurricane can have,” said Theodore Keeping, a climate scientist who works for WWA and contributed to the analysis.Melissa is the fourth storm in the Atlantic this year to undergo rapid intensification, which is when a tropical cyclone’s maximum sustained winds increase by at least 30 knots (about 35 mph or 56 kph) in 24 hours.AdvertisementAdvertisementAdvertisementAdvertisement“A hurricane this rare would actually have had wind speeds about 10 mph (16 kph) less extreme” in a pre-industrial climate, said Keeping. He said research links hurricane wind speeds to economic damage and there would have been less destruction caused by Melissa if the winds were slower.Scientists have linked rapid intensification of hurricanes in the Atlantic to human-caused climate change. Planet-warming gases released by humans, such as carbon dioxide, cause the atmosphere to hold more water vapor and …
