I think a lot of people conflate natural erosion with sea level rise. Not that you are going to differentiate when the sea is carrying your back yard away. And as mentioned above, sea levels have been rising for thousands of years. On a brighter note, perhaps humanity will have managed to wipe itself out before 2100 anyway.
mechnificent,
Dec 27, 7:51am
It's not just sea that rises, land masses can sink, or rise, and both are going on all the time. Sediment around the coast can build up to such an extent that it not only displaces water causing sea level changes, but can actually exert pressure on underwater geology which accelerates the land rising. The quicker the land rises, the quicker it erodes. Viscous circle.
About eighty years ago we knew about geology, and that erosion happened, and that lend masses rose slowly, but were being eroded at the same time. A kiwi geologist by the name of C. A. Cotton came up with a concept called geomorphology, and wrote a book about it which quantified and explained how and why these things happened. It changed the way geologists all over the world looked at geological process which up until that time had never been studied fully. The book's called Geomorphology. It's very interesting and was written mainly citing N.Z. geology, but also references all the world's land masses. I'd highly recommend it if anyone is interested in these things.
bill-robinson,
Dec 27, 7:53am
it is all water,that is what i said
gunna-1,
Dec 27, 7:56am
Bring it on, i love this stuff, people freaking out about climate change likely have no idea about pole shift, the large hadron collider, or that nuclear war could break out any time, might need to whip up a fresh batch of lead paint and hope we get it right this time and not have to scrape it of again in another 20 years, it helps protect from the fallout.
apollo11,
Dec 27, 8:03am
Think of the ice cube and glass analogy. Your drink level rises when you put the ice in. Think of Antarctica and Greenland as big ice cubes, and the ocean as your g'n't.
mechnificent,
Dec 27, 8:13am
Uplift of the land and erosion has always been the greatest changer of ocean levels relative to the land. And almost guaranteed always will be.
mechnificent,
Dec 27, 8:14am
If the ice melts, and it has in the past, it increases the pressure on the land masses and the land get squeezed upwards.
mechnificent,
Dec 27, 8:18am
If one land mass goes down, another goes up.
apollo11,
Dec 27, 8:28am
It's plate tectonics, not whack-a-mole, mech.
mechnificent,
Dec 27, 8:48am
Nah plate tectonics is when the plates move around on the surface of the globe.
mechnificent,
Dec 27, 8:51am
And plate tectonics is slow compared to displacement.
apollo11,
Dec 27, 8:53am
What other forces create new land other than tectonics?
mechnificent,
Dec 27, 8:53am
Two books. "Geomorphology", and "Time Life And Man". Get them and have a read. It'll only take a week or so.
mechnificent,
Dec 27, 8:54am
Erosion and sedimentation. or a big meteor.
mechnificent,
Dec 27, 8:55am
Water freezing could expose land too, but that's not new, just uncovered.
There was a large building that had been under water since something like the middle of last century that dried up and became visable again, it was in the news about three or so years ago, what will realy kick things of is if countries start sinking, theres some under the ocean as we speak, it is a naturaly occurring thing.
mechnificent,
Dec 27, 9:03am
Yeah, there's hardly a bit of rock on the planet that's not been reconstituted from old. Interesting that they think it shifts that fast though.
Read the books mate. They are far more detailed than anything you are going to read online.
mechnificent,
Dec 27, 9:05am
And no it's not tectonics. Tectonics is the movement of the plates on the surface, with uplift and sub whatever they call it. diving under. All quite superficial though. comparatively.
mechnificent,
Dec 27, 9:09am
One of the oldest bits of rock on the planet is just off the Northland coast. But it's still reconstituted. Scientist come from all over the world to study them. And the rock formations around the east and west heads of Doubtless Bay are very old.
mechnificent,
Dec 27, 9:16am
Humans seem to think the survival of the planet's all about us. It's not !
mechnificent,
Dec 27, 9:18am
In the long run, there's nothing we can do that's going to make the slightest bit of difference to the place.
mechnificent,
Dec 27, 9:21am
But if I'm to survive, I'd better get off to bed.
bill-robinson,
Dec 27, 11:58pm
you are talking of displacement in you example. antarctica yes greenland no it is a land mass with ice on it.
bill-robinson,
Dec 28, 12:02am
you are correct, we are wasting our time and life on stupidty. just live life and enjoy it and try to achieve your dreams.
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