A few weeks back I noted in my column that when times get tough, Americans will stop worrying about whether polar bears have enough ice and start asking whether those white, furry critters are edible. That comment caused quite a stir, and I would like to thank everyone, in particular the folks from Alaska, for the great recipes they forwarded—“Bear Claw Cordon Bleu†for instance. A smaller number of folks were offended by my bear remarks.  They considered them a veiled swipe at their fellow global warming zealots. My only regret is that they thought my swipe was . ....