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Are sea levels rising from global warming? Will this cause flooding of low lying areas or elimination of certain islands as alarmists predict? Aparently the opposite it true once again. Global warming, if it exists, will most likely lower sea levels! At least that is what the data seems to show.

the whole story

www.security-policy.org/papers/other/edwarm05.html

Rodney

Hey Rodney, Read that story and I'm not so sure about this guys logic. If what he said was true about glacial ice just being redeposited on the polar caps and making up the difference for meltdown...then someone really needs to explain the mechanics of the massive land floodings in our past history and why the scenario this research is proclaiming would be any different from the effects of past "warm" periods. I really can't buy into all that water turning into snow and neatly falling on the poles....wouldn't it rain elsewhere?

As far as "expanding and contracting land masses and tectonic plates go...To my logic, when water runs off of one place-it flows onto another. So the question is "If the mass of (Greenland to use his example) rises due to decreased (glacial)pressure where would the runoff go?"

As I live on a "land mass that has ample evidence of histoic submersion...Do I or don't I buy a rowboat?(lol)

Sounds like more study is needed...

Frank
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"The luxury of not getting involved departed with the last lifeboat Skipper..."

Another thought. Using Fred's (Greenland)concept in reverse. The increased thickness of the polar caps would cause the polar regions to sink... Except the natural process of glaciation (namely that the extra weight on top of the glacier) causes glaciers to "grow". The result would be the glaciers would expand eventually into warmer air and there would be(at an increased global temp)an increase in glacial melting.

Frank
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"The luxury of not getting involved departed with the last lifeboat Skipper..."

And not only that, but then there is archimedes principles of fluid displacement (I think I spelled that right).

A floating object will displace it's mass, exactly. (A mass equal to the material it is floating in)

So, if glaciers weight down a land mass, (equal to the glaciers weight), there should be no net change in water levels.--But then again, what if a tectonic plate is holding up that part of land so it doesn't "weight it down"?

I do understand the snow concept though. If it snows a lot more, and rains a lot more, there will be more water located in places other than the oceans. There not only will be more snow pack in colder locations, but more water in the atmosphere, more lakes that are full to the brim, more land that is saturated from rain. (And the oceans aren't nearly deep enough for the continents to be floating, so archimedes is out of luck here.)

Another thing I have heard, that is interesting, is that water located in ice pack/glaciers really doesn't matter anyway. Consider this. What percentage of the total water on Earth is located in ice packs/glaciers? Not very much. The oceans contain so much water, that adding that little wouldn't even be noticed. What would be noticed, are things like El Nino.- A fairly large amount of water that expands due to higher temps., and that causes far more of an increase in water volume than all the glaciers in the world melting. (I don't know if that is true, but it make sense to me. The oceans are truly immense compared to the small amount of ice located on the land.)

Rodney

As much of South Florida is (natural unfilled land) less than three feet above sea level...I pause and wonder if it's time to put on my water wings (lol).

Frank
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"The luxury of not getting involved departed with the last lifeboat Skipper..."