04 Jul '08 17:40>
Originally posted by PinkFloydThere is plenty of evidence ice is melting at an unprecedented rate, but ice floating already won't raise the sea levels, but ice on land, like inland Antarctica or Greenland certainly will raise the ocean level, already has in fact. There is a village on a small low lying island in Alaska that recently had to be abandoned and the natives set up on the mainland because the whole island is going underwater, its about halfway there right now, all the town is mostly underwater now. So it's here and it's now. How much worse it will get is up in the air till further research elucidates the issue one way or the other. Still, it's a fact that glaciers are disappearing at an alarming rate and that is a direct result of higher CO2 in the atmosphere, which is well documented to be a direct result of man's use of fossil fuels. If we don't get our act together we won't have cars at all and can kiss such scientific projects as the space program goodbye, we will have lost our chance to get off this planet and start over somewhere else which is the only way we can ensure the continued existence of the human race. If we can get viable colonies going on say, Mars, no matter what happens to the Earth, the human race goes on. All that is in real jeopardy if we don't get our environmental act together and soon. You may debate the soundness of making extraterrestrial colonies and such but it is an option we have now but may not have in the future and the whole planet can go back to a big winter condition or super dry, we don't know enough to say which way things are going but it sure is not going to stay in the rather benign state it is in now, we have had a free lunch for ten thousand years and that may be over in a rather short period of time. Look what happened to Europe in the dark ages, which was caused by a time of no sunspots, the 'little ice age' and drought, winter weather all summer long, no growing season, black plague, starvation, all added up to kill over 50 percent of the population and it took 500 years to recover from that. All that could come back but for the whole planet.
Your civil tone indicates your skills in tact and courtesy have improved. For now, you are no longer on my "ignore" list.
The "if" in your comment is the key--I see no evidence at all that says the oceans will rise, fall, or stay the same over the next 100 years. We just don't know. And if we did, I doubt that man, and his puny efforts, could do anything about it.