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#17 |
~~Life is either a daring adventure or nothing.~~
Join Date: Apr 2006
Posts: 6,828
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#18 |
Operations Operative
Join Date: Sep 2003
Location: scotland/uk
Posts: 664
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There was some scientist from Norway on the tv the other day I only caught the last part of what he was saying but he was stating that the rising of the sea waters and flooding projections are wildly over the top.
He gave an example order a drink at any bar add ice and sit and watch the ice melt and see if the glass overflows with the extra liquid. It won't because the ice and melted water are the same weight,same displacement. |
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#19 |
I think this line's mostly filler.
Join Date: Jan 2003
Location: DC
Posts: 13,575
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Then he's never heard of Greenland and Antarctica. If he thinks that his little Mr. Wizard science knowledge wasn't taken into account, he's deluded. My guess is that he knew he was BSing, but hoped his listeners wouldn't.
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_________________ |...............| We live in the nick of times. | Len 17, Wid 3 | |_______________| [pics] |
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#20 | |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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Quote:
The ice in Greenland and Antartica is considerable. The reason it will contribute to the rising of the sea levels is because it's not *in* the sea now. It's on land.
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#21 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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United Nations worst case scenario is sea level up 1 meter by 2100, according to Space dot com.
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The descent of man ~ Nixon, Friedman, Reagan, Trump. |
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#22 |
NSABFD
Join Date: Jul 2004
Location: MS. usa
Posts: 3,908
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Don't think I'll be around for that.
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I've haven't left very deep footprints in the sands of time. But, boy I've left a bunch. |
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#23 |
Guest
Posts: n/a
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BTW, we live on the central FL ridge, the highest point within 50mi of the coast on the Eastern shore of the US... no lie. The rest of the US slopes more gradually than it does here.
Gonna' cost ya' a blow job ta' sleep in my back yard. |
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#24 | |
Flocci Non Facio
Join Date: Aug 2006
Location: In The Line Of Fire
Posts: 571
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Quote:
The Climate Shock and Awe campaign has started. Sevel level rise is another doom scenario from the alarmists like Al Bore. Over 1,000s of years the rate of sea-level rise has been linear over this time period and shows no indication of the pronounced mid-20th-century increase. If one took the time to read the IPCC 2001 report, one would have read: “No significant acceleration in the rate of sea level rise during the 20th century has been detected.” Although since the publication of the IPCC 2001 report, a few studies have been published which report to have found evidence of sea level rise acceleration. However, the jury is still way out on this issue. It's impossible that Word Climate has changed dramatically since 2001.
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Believe those who are seeking the truth. Doubt those who find it. Last edited by Hippikos; 02-02-2007 at 07:40 AM. |
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#25 | |||
™
Join Date: Jul 2003
Location: Arlington, VA
Posts: 27,717
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#26 |
Pump my ride!
Join Date: Aug 2005
Location: Deep countryside of Surrey , England
Posts: 1,890
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Hmm...
What about all the erosion of land mass by rivers over the eons of time that has resulted in millions of tons of minerals being deposited in estuaries which has then been taken out to sea by the action of tides and waves? Wouldn't this have added to the amount of solid matter in the area of sea water, thereby, basis relying upon good old Archimedes and his discovery of relative density, causing that water to rise up higher against the remaining land mass (body in bath principle)? Has this happened? If 9/10ths of an iceberg remains below water anyway and water expands when frozen why haven't these monster objects let alone the ice land-mass had the same Archimedes effect? Maybe the waters will actually fall - maybe we should all go down to the beach with a bucket and spade and cart a bucketfull of sand back inland each day to try to reverse the effect - maybe it's not such a bad idea to buy a beachside property after all....
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Always sufficient hills - never sufficient gears |
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#27 |
~~Life is either a daring adventure or nothing.~~
Join Date: Apr 2006
Posts: 6,828
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I couldn't find any recent photos of the earth's polor ice caps. I did find a photo of melting ice caps. Scientists know the earths ice caps are melting at 9 % per decade.
![]() This photo is 7 years old. I did find this site to be informative. http://www.earth.columbia.edu/crosscutting/climate.html In May 2005, scientists concluded the Earth is absorbing more of the sun's energy than is being emitted back into space, disrupting the planet's energy balance and resulting in global warming. |
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#28 | |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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Quote:
wrt icebergs, it's irrelevant what the percentage is above and below the waterline, if they're floating. If they're floating, the waterlevel is unchanged whether the ice melts or not (not including the expansion of the seawater as it's heated). But for ice that is not floating, like the vast amounts of ice in Antartica that are thousands of feet thick and rest on the land. When that ice enters the water, the level of the water will rise. Just ask Archimedes.
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#29 |
Pump my ride!
Join Date: Aug 2005
Location: Deep countryside of Surrey , England
Posts: 1,890
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Hmm again - I thought relative density was about displacement anyway - the volume of water an object displaced in relationship to its weight or the other way around, or something - mind you it was a long time ago and I never followed the science path when the time came to take the split (1962 I think!)
So what's the difference between millions of tons of sediment and minerals eroded into the sea on the one hand, and ice on land that ends up in the same place on the other - with 2/3rds of the planet being water and god knows how deep overall will the addition of the ice caps volume really impact as much as is thought? Global warming, and the increase in evaporation leading to a more turbulent water cycle and consequent weather system changes is something I can relate to, but I just wonder why we haven't seen water levels rise dramatically already through natural erosion processes - if you put more land into the sea then by rights the sea has only one place to go, upwards, but that isn't so evident. And if the ice caps do make a difference, then how much would it take to remove x million tons of tidal covered coastline to higher ground to accommodate the equivalent of the ice caps mass - maybe a few billion buckets (one per person of the world's population) would do it. Probably screwed up logic, but it's Friday and been a long week
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#30 |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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o/t displacement v relative density:
take a bucket of water. blow up a balloon. dunk the balloon in the bucket. water is displaced. take another bucket of water. take a deep breath. dunk your head in the bucket. water is displaced. therefore, class? you have a head full of air? johnny, sit silently in the corner, that was rude and uncalled for. the water is displaced because of the volume of the object immersed in the water, irrespective of the density of the object. density is mass per volume. it only appears to apply here because of the extremely rare property of water, that it expands when cooled. not that cool water is rarer (though it's becoming rarer), but that very few other materials behave likewise. people see ice (water) "floating" in water and they're observing the relative difference in density of the same material (water).
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