[alloysteel]

It would require the development of sufficient power to displace really HUGE portions of the earth's lithosphere and hydrosphere and atmosphere, for mankind to make more than a miniscule change in any aspect of that vast combination of physics, chemistry, and biology that constitute the climate-forming factors that control the weather situations across the face of the planet. A simple pulse of excess electromagnetic energy from our sun, or a shifting tectonic plate beneath a continental shelf, would transform the face of our earth far more than all the industrial activities that have already occurred, or may be reasonably expected to be undertaken within the next century or two. By then, one would expect that technology would have advanced to a point that any massive displacement would be mitigated by corrective steps to counterbalance the detrimental effects anticipated, In most cases, the corrective steps are being applied right along with the advancing technology even as we speak.

[patton]

Exactly. People who claim my SUV caused global warming are either incredibly arrogant, or simply stupid.

(Besides, my boat has two eight-cylinder engines...)

[Doctor Stochastic]

Actually one only has to put a small amout of catalyst in the atmosphere and nature will do the rest. It only takes one cigarette butt to start a forest fire.