Earth's Plate Tectonics May Eventually Stop

Natural History Magazine ^ | Aug 15, 2008 | Stephan Reebs

[decimon]

The Pacific is the biggest ocean on Earth, but it's getting smaller every day. Australasia and the Americas are inching closer together, and in about 350 million years the Pacific will effectively close.

That's when plate tectonics - the process driving all that slow motion, and one that geologists have assumed to be continuous - may grind to a halt.

[Monkey Face]

I suspect we won’t be here to worry about it.
The Himalayas are growing by a half-inch a year, but I don’t know what that means for the coastal areas. More beaches?