A lot of that is already coming to occur. As the thousands of feet of ice caps on Greenland and Antarctica melt, those continents tend to rise, upsetting the balance of the plate tectonics of the planet. That already is triggering earthquakes, and will continue.
As the ocean depth changes, the circulation of water through the Aleutians changes. The oceans are effectively a large conducting surface in the field of moving charges from the solar wind, which is caus9ng an accelerated motion of the magnetic pole already, although not a pole reversal. That would require a freeze - which has a few millennia to wait, unless we get whacked by a an asteroid or comet. - However, we have at least one asteroid that's planning a near miss this year. If it comes back and tags us, it will trigger volcanism, and another ice age. That would definitely change the poles. However, the natural cycle is to have a freeze and pole shift every 60,000 years anyhow. Our ancestors survived it quite well, so chances are that we will too.
The scenario from geo-science tends to view things as warming up toward the age of the dinosaurs agan, when the big lizards sort of sogged and slid over the marshes. Fossil records of their nesting behavior suggests that they had a lot in common with modern allegators.
If warming continues, we'll reach the critical temp to sublime a lot more methane hydrate, raising the temperature even more. Land in the polar regions will be nice for gardening, but the equator will warm up and probably become uninhabitable.
Now's the time to look into those real estate investments in northern Alaska, the tropical garden spot of the New World.
dave
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The shift at 2012 (Read 2800 times)
