Maui is facing a compound disaster, where many different agents acted together to make the fires so horrific. As human influences on the climate and environment grow, the risk of these disasters is escalating.
But scientists have also prominently mentioned the role of non-climate influences in the intensity of the firestorm, such as the introduction of highly combustible nonnative plants, as well as weather patterns that happen naturally.Among factors that made the fire so destructive — severe winds and ongoing drought — the influence of climate change appears indirect, at best.
While there is a long-term trend of declining precipitation in Hawaii, there isn’t enough evidence to suggest that is the product of anything besides normal climate patterns and fluctuations in the Pacific, she said. Precipitation patterns there are heavily influenced by El Niño, which returned in June, and by a longer-term pattern known as the Pacific Decadal Oscillation.
That is not to say human activity didn’t directly contribute to the fires in ways that don’t involve the climate.for ornamental use or for cattle grazing. As agricultural activity has declined on the islands, the grasses have spread across fields that were once regularly watered and maintained, said Alison Nugent, an associate atmospheric scientist at the University of Hawaii’s Water Resources Research Center.
Clay Trauernicht, a fire researcher at the University of Hawaii, said he and others concerned about wildfire risks have for years been working to raise awareness about the importance of better managing the grasses and taking other efforts to harden homes.
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