With this, as with any other contentious matter, most people will cling tenaciously to the first position they took on it...almost till Hell freezes over. Why? Well, because their ego has already invested a good deal in defending that first position, and it is NOT about to recant now! Nosiree. It's the "Vietnam" syndrome. ;-) "We can't withdraw now, because that would mean that all those lives were 'lost in vain'..." LOL! What vanity. Such lives are pretty well always lost in vain.

The mountain of evidence, however, now confronting those who scoff at the notion that there is global warming occurring and that humans are significantly contributing to it, is managing to cause many of even the most stubbornly recalcitrant egos to amend their past position...or just become a little bit less vociferous about defending it. Their numbers are steadily dwindling.

The same is true of those who assert that invading Iraq was a really terrifically excellent and necessary thing to do.