posted 09-08-2003 12:54 AM
What does Anderson mean by this?
"He noted that if all climate forcing from outside factors so far has had a cumulative negative effect, then climate warming that already has occurred cannot be from human activity but rather must be the result of natural climate fluctuation. On the other hand, if the total forcing to date has been very small but still caused the observed warming, then the Earth's climate might be much more sensitive to forced change than climate models currently indicate."