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...and there's no doubt that warm ocean temperatures are a requirement for hurricanes; so making the assuming that a warmer waters overall nevertheless won't af
by emn13 9y ago
...and there's no doubt that warm ocean temperatures are a requirement for hurricanes; so making the assuming that a warmer waters overall nevertheless won't affect hurricane frequency and intensity is at the very least weird enough that you'd want evidence of that.
- liberte82 9y agoTemperature differential creates hurricanes. If everything is warmer, it doesn't necessarily mean more hurricanes. Not really disputing what you're saying, just adding some precision.
- emn13 9y agoSince outer space is still cold, that temperature differential always exists. But to transfer heat, the system uses water vapor, and that is not relative. If the whole system is warmer (and still firmly below absurd extremes such as boiling point), then even though the differential to the rest of the planet may be the same, that does not mean the system will behave identically. Beyond the really fundamental and abstract "differential must exist" (which is true of any heat engine and is in any case always satisfied) I cannot find any reference to the notion that relative temperature (to the rest of the nearby weather?) is what matters. Various sources I find talk of absolute water temperatures in the 26-27 degrees centigrade range (of course these aren't 100% strict limits).