A couple of days of 50 degree weather, and the glacier across New England is finally starting to recede. Out pops fire hydrants, mail boxes, beer cans, dog turds, withered perennials and other vestiges of last fall. With any luck, this warm spell will continue to work its magic, and soon the Connecticut River will thaw as well. Then come the crocuses, the fresh grass — and with that, a new lease on life for us all.