posted on Aug, 10 2005 @ 08:26 PM
Well the Earth goes through natural temperature and CO2 cycles which modern science has deduced from ice core sampling.
Conditions for dinosaur life would have been tropical ... it is the ice age that killed them off. The question is what causes ice ages?
If we imagine that the comet was responsible for kicking off the glacier formations, then, if the comet had never hit, and everything else was held
constant, then yes we'd probably be Tyranosaurus Rex bait, although we might have killed certain species off out of defensive survival needs, sort of
like we don't see bears wandering out onto main street like in the old days.
If actually the comet was only part of the picture, and there are longer term cycles due to modifications in the Earth's orbit and solar cycles, then
it was inevitable, and it is only the hardiness of the human species that enables their ability to acclimitize or else invent technologies that
provides us the ability to endure a wider range of climate fluctuations.