Rising sea levels - The greatest lie ever told

[Swanny]

Originally Posted by Dantheman62

So I guess we can tell the people over in the Cartaret Islands that it's all a figment of their imagination and they can stop piling up shells and rocks to keep the water back now. I'm not saying it's rising everywhere but those poor people are desperate and running out of land fast!
And yes there's plenty of pictures to see it, not just a news article.

Maybe it's only rising there???
Or maybe they are sinking??

[Dantheman62]

Originally Posted by Swanny

Maybe it's only rising there???
Or maybe they are sinking??

Yup, could be either or both, but the level is rising there. There's a whole bunch of articles, pictures, and videos of the Cartaret Islands and how bad it's getting there.

[Egg]

Pacific islands ...... made up of the protruding rims of an undersea prehistoric volcano. Today a little more than 1,500 people live in the islands which, from space, look like the beads of a necklace lying on a turquoise background.

potruding rim of an extinct volcanoe? well there you have it then. My bet would be sinking not sea rising.

http://www.dailymail.co.uk/news/arti...ea-levels.html

Even a kid knows that tectonic plate movement means some land sinks whilst others rise.

Just to follow up on what I posted earlier. It was an idea, but the seas will rise when they get warmer. Water takes ion a greater mass when the temp. is higher. This may only be a tempary rise in their case. But what ever happens I hope they get things sorted for those people in the way. I have seen the pictures and heard the news, but where is it on on the longditude and latitude? Is the ocean bulge getting higher then? I am certainly now expect and only have a bystanders interest, lets just hope they get help.

[Dantheman62]

Here's some more info........

In the case of Earth, there are eight major and many minor plates (see list below). The lithospheric plates ride on the asthenosphere. These plates move in relation to one another at one of three types of plate boundaries: convergent, or collisional boundaries; divergent boundaries, also called spreading centers; and transform boundaries. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along plate boundaries. The lateral movement of the plates is typically at speeds of 50–100 mm annually.


Three types of plate boundaries exist, characterized by the way the plates move relative to each other. They are associated with different types of surface phenomena. The different types of plate boundaries are:

1.Transform boundaries occur where plates slide or, perhaps more accurately, grind past each other along transform faults. The relative motion of the two plates is either sinistral (left side toward the observer) or dextral (right side toward the observer). The San Andreas Fault in California is one example.
2.Divergent boundaries occur where two plates slide apart from each other. Mid-ocean ridges (e.g., Mid-Atlantic Ridge) and active zones of rifting (such as Africa's Great Rift Valley) are both examples of divergent boundaries.
3.Convergent boundaries (or active margins) occur where two plates slide towards each other commonly forming either a subduction zone (if one plate moves underneath the other) or a continental collision (if the two plates contain continental crust). Deep marine trenches are typically associated with subduction zones. The subducting slab contains many hydrous minerals, which release their water on heating; this water then causes the mantle to melt, producing volcanism. Examples of this are the Andes mountain range in South America and the Japanese island arc.

http://en.wikipedia.org/wiki/Plate_tectonics

[Dantheman62]

The main plates are

African Plate covering Africa - Continental plate
Antarctic Plate covering Antarctica - Continental plate
Australian Plate covering Australia - Continental plate
Indian Plate covering Indian subcontinent and a part of Indian Ocean - Continental plate
Eurasian Plate covering Asia and Europe - Continental plate
North American Plate covering North America and north-east Siberia - Continental plate
South American Plate covering South America - Continental plate
Pacific Plate covering the Pacific Ocean - Oceanic plate

[Egg]

And this map shows that the islands are where at least 3 if not 4 seperate plates are in that area.



I am voting tectonics and not oceanic rise.

[Czymra]

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[Anchor]

It doesnt matter if its the sea levels rising, or the landmass sinking, the effect is the same.

Granted all the spin on climate change is not helpful, but I for one am ensuring that I live in places that are at least 150m ASL and my ideal retreat would be >800m ASL (where it is a little cooler).

I know that not everyone gets a choice but I see the sea level being an issue over the next 20 years.

A..

[Egg]

Originally Posted by Anchor

It doesnt matter if its the sea levels rising, or the landmass sinking, the effect is the same.

Yes it does here, because I am trying to show that sea levels may not be rising - these islands were brought forward as proof, and I have shown that A) they are on a very active plate line (multiple plates in fact join in this area) and B) the expert says the sea is not rising and he is being silenced - I actually agree with him, as in the 100 years my mothers family have lived on the coast, the sea hasn't risen an inch.

Granted all the spin on climate change is not helpful, but I for one am ensuring that I live in places that are at least 150m ASL and my ideal retreat would be >800m ASL (where it is a little cooler).

I know that not everyone gets a choice but I see the sea level being an issue over the next 20 years.

A..

I agree. Totally agree with you - above 150 is a nice little comfort / buffer zone.

as for those poor islanders, well, it truely is a heart renching thing to see what ever the cause of their plight is.

[vipassana]

From the article:-

The reason why Dr Mörner, formerly a Stockholm professor, is so certain that these claims about sea level rise are 100 per cent wrong is that they are all based on computer model predictions, whereas his findings are based on "going into the field to observe what is actually happening in the real world".



Thanks for this interesting info Egg. Dr Morner is A TRUE EXPERT in my book because he has questioned the computer model predictions and done his own research.

[Carmen]

I dunno about that Egg. Our coasts in New Zealand are being eaten away in places. Its not just a computer model here, you can see it. The coast off Oamaru,(east coast South Island, a guy lost his building to the sea! I sure as hell don't want to be on the coast in the next few years!

Cheers

Carmen

[Egg]

Coastal erosion isn't the same as sea levels rising though. Cliff erosion happens because the rock is weaker than the might of the sea - any coast line that is not granite or other suitably hard stone will be eroded over time.

Just use google earth to look at the coast of south east england, and then look at the coastal cliffs of Scotland. Cliffs are fine up there, but down south they are made of chalk or sand stone and are getting eaten away.

[micjer]

I still don't want to live near the coasts for the simple reason of a major earthquake causing a major tsunami.

I don't believe that the seas are rising because of global warming. Even if they were, it would be a gradual thing over years. It's the sudden wave I am concerned about.

http://runtsrantpage.com/pages/tsunami.html

[Egg]

I hear you on that one. Thats why I am moving to higher / more remote ground in the coming months.

[McMaster]

Hello!

Remebered that I read a lenghty "article" about this and actually managed to find from my bookmarks.
Hopefully this comes handy to some one!

Testing The Waters: A report on sea levels

[micjer]

Originally Posted by McMaster

Hello!

Remebered that I read a lenghty "article" about this and actually managed to find from my bookmarks.
Hopefully this comes handy to some one!

Testing The Waters: A report on sea levels

The future rise in sea level, according to the IPCC [23] [25], will be caused by two factors. First, the waters of the oceans will expand in volume due to global warming, just as metal expands when heated

This was written in the article. ummmm my science teacher told me that water expands when it is frozen! Your ice cubes get bigger in the tray not smaller. oh well guess this guy went to smarter school.

[McMaster]

Originally Posted by micjer

This was written in the article. ummmm my science teacher told me that water expands when it is frozen! Your ice cubes get bigger in the tray not smaller. oh well guess this guy went to smarter school.

I think it works both ways. When water freezes it expands because of the transformation into chrystalline structure, and when liquid, thermal expansion takes place. Just a guess tho.

[Connecting with Sauce]

Originally Posted by micjer

This was written in the article. ummmm my science teacher told me that water expands when it is frozen! Your ice cubes get bigger in the tray not smaller. oh well guess this guy went to smarter school.

That is because water is pretty special... It has a triple point for one and also as it freezes and the molecules start to slow down they form a crystaline structure which is less dense than water the reason for this is the strong covalent bond (which is almost ionic-like in nature) with H2O and its triangular nature causes a positive and negative nature to the molecule and they line up forming ice lighter than water.

http://en.wikipedia.org/wiki/Water_(molecule)

Well at least that was what I learnt in my physics degree if that was 'correct' and not made up too.

[Anchor]

Wilkins Ice Shelf about to break off

http://www.cnn.com/2009/TECH/science...elf/index.html

A..

[alyscat]

Yep, fortunately floating already, so shouldn't increase the sea level, but a real indication of the rising temps down there. And the speed at which they're rising.

[Humble Janitor]

How can it be a lie when the other planets are warming too?

It's just as dangerous to call something a lie as it is to call it the truth. I think that we really don't know as much as we think we do.