Quote:
Originally Posted by Cowperson
And the obvious answer to that would be this, also from today:
http://www.cbsnews.com/stories/2007/...n2413400.shtml
Still, I would agree that anyone jumping in with both feet onto the "mankind is responsible" bandwagon has to concede that the globe has warmed and gone frigid in dramatic fashion all on its own many times through millennia without humans helping it . . . . . and we have to understand why that is as well.
Cowperson |
Yes, the temperature does fluctuate naturally over the course of time. However, right now the amount of Co2 that is in our atmosphere is WAY out of the
range it has been in the last 10 cycles of ice ages and in between. Temperatures have a DIRECT correlation to the earths overall temperature. This is a fact. Scientists have measured ice shelves and can determine the amount of atmospheric Co2 dating back a few hundred thousand years. We are way out of the normal range historically in the past 50 years.
http://news.bbc.co.uk/2/hi/science/nature/4467420.stm