Scientific method is the way to go. They evidence is plain to see if one just looks. Yes we need to care about what is going on elsewhere. All in all well said RB.

Corries-- saw a lot of these up north in Alaska and sometimes when they thaw in the summer there are magnificent watefalls.

I'm not sure if Corrie is the correct word for some glacial lakes and ponds that were left on Long Island as their initial sides are not steep but some are deep however.