Dear Uncle Jay:

I hear a lot about global warming, but even with all the evidence, some people still refuse to see that it’s real. How can we convince them that it is better to act on an uncertainty, instead of doing nothing and facing global disaster?

Dear David: It is NOT always better to act on an uncertainty.  Examples: Y2K, WMD, subprime lending.  And hey, those were all slam-dunks, weren’t they?  Seriously, though, something disturbing seems to be happening to the Earth.  That’s why your city has apparently shifted from Upstate New York to Michigan.