This is all because of Globull Warming. Now we all have to send Al Gore money so he can fly areound in his private jets and limos telling everybody how bad this Globull Warming is for the planet.
We can all disregard the fact that the native americans came across a land bridge from Asia when the sea levels were lower and the sea levels have been rising ever since.
WHAT! There was a land bridge between Russia and Alaska? Could it have been in the vicinity of the Aleutians? Kind of like there used to be a vast inland sea here in NV. Odd huh? Things change and humans had NOTHING to do with it. How can that be? Change is inevitable as long as there are SUVs.