Global Warming

[dreadgeek]

Originally Posted by Rockinonahigh

I honestly beleave the earth has gone thrue many cyckes of cooling then warming in varying degrees and will contenue to do so.I'm not a scientis but I do read lots of earth/ cutural history and it says thay had happen a lot of times,onething for shure we best be mindful of how our ancestors got thrue the weather changes so we will be able to do the same by inproveing on the how and why they did as well as they did.the satistics of survival of the fitist will be inproved on but useing th technology we have at hand.

We have some advantages they didn't have and they have some advantages we didn't have. We have better technology and so more of us could likely survive a harsher ice age than our paleolithic ancestors did. That said, our die-off would likely be *much* larger simply because we are so much more numerous. Keep in mind, though, that given the small genetic diversity of our species (I know we don't look like we are genetically relatively homogeneous but we are) we've had one very close brush with extinction. The current understanding is that all 7 billion of us are the descendants of, perhaps, no more than 10000 breeding pairs living ~75-100000 years ago. Yes, we bounced back and did so quite magnificently but as I said earlier, there's a lot of genetic diversity we lost during that time.

As far as how we might adapt as a species is anyone's guess. We are still evolving as a species but we've changed the rules of the game so much that it's just this side of impossible for us to know what kinds of traits are being selected for.

Cheers
Aj