I read today that scientists think that the underground volcano that fills the Yellowstone landscape with hot springs, bubbling mud, and geysers may not be as hot as previously expected. The implication is that the Yellowstone landscape may be changing over time, with hot springs dying out (as we saw at Mammoth Hot Springs), and thermal features disappearing. Of course this may (and probably will) happen over a long period of time. But it points to the idea that the earth is always changing, as much as we might like it to stay the same. This train of thought led me to thinking about the subject of global warming. For all it's worth, (probably not much) I think that any climatic change we may be seeing is the result of the ebb and flow of natural processes. Once there was a sea, then there was a jungle, now there is the Badlands--all changes that took place without the "interference" of man.
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