Larry Gude said:
...irrelevent.
We could have an immense volcanic erruption tommorrow that would completely change global weather patterns for decades...and not be able to do one damn thing about it.
True. But those kinds of eruptions happen every few millenia. Even Mt St. Helens or Pinatubo didn't affect global climate that long. Even Krakatoa only affected world climate for a year or two. You're talking pre-dinosaur kind of volcanic activity - in which case, we wouldn't really be having this discussion, because we wouldn't exist.
I am skeptical that GLOBAL WARMING is caused by us. It doesn't hurt to be cautious, to measure it and apply our brains to the matter WITHOUT waiting for a few *millennia* of data "just to be sure". That's not science - that's collecting data. Unlike other experiments - we LIVE in this one. We can't afford to be wrong on it. We have to rely on other means of proving or disproving this before the "necessary" millennia of data comes in. Because if we wait that long, it will be too late.
It's not unlike the "smoking gun" argument regarding terrorists - if we wait until there IS a smoking gun - or, perhaps, a mushroom cloud - well, it's kind of LATE for that, right? There MUST be another means to prove or disprove the matter.
I'm against the crowd that has rushed to judgment on the issue. I find it laughable that the group that signed onto Kyoto has since found that its members aren't complying, and it hasn't helped. Most of the worldwide obsession with the matter is pure politics - not science. Science is a search for facts - politics is a search for *blame*.
(You're out to lunch on the ozone thing, though. That's good science).
truby has a point where man DOES harm the local environment. You don't do yourself any favors going back and forth on this issue. Stick with the global argument. Local environmental devastation is clearly documentable. Taken a look at the Bay lately? The Patuxent? How 'bout them local oysters? How about local aquifers? Ever go fishing in the Charles, the Schuylkill, or the East River? On local levels we DO devastate the environment.