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I accept the mainstream scientific consensus on Anthropogenic Global Warming. However, you cannot attribute any single weather event, no matter how extreme it is, to Anthropogenic Global Warming. It is a fools errand to do so. You can say that a warmer climate makes such events more likely, but you cannot say that the amount of rain that the Houston area is getting is due to AGW. Similarly, you cannot say that it isn't.
Yes, I agree. That said the Gulf was much warmer than usual - between 2.7 deg F and 7.2 deg F. That is very probably the reason for the intensity of the hurricane. So I think, in this case, the warmer climate makes this event much more likely.
https://www.wired.com/story/what-are-the-odds-of-a-super-storm-like-harvey
When Hayhoe and others scientists look at the storm itself, they see a hurricane that has been able to keep one foot on the gas pedal while still connected to the gas tank. Warmer water means more water vapor available to power the hurricane, and Harvey’s fuel source—the Gulf of Mexico—is unusually warm right now, thanks to a combo of slow climate change-related warming and a hot August in the gulf.
As Harvey approached the Texas coast last week, the Gulf ocean temperature rose 2.7 to 7.2 degrees Fahrenheit above average. “That provided a deep, warm pool of water used as fuel,” says Dalia Kirschbaum, a research scientist at NASA’s Goddard Space Flight Center who studies hurricane hydrology. Harvey used this hot spot to shift from a tropical depression to a category 4 hurricane in roughly 48 hours.
Kind of a Climate Change Double Whammy...