Enviros of different stripes disagree on a lot of issues, but many have lamented in unison the recent absence of a full-time environmental writer at the New York Times. Got a hot story in need of some serious national ink? Whom do you call? USA Today? The news mags? The networks? Sure -- you call them all. But everyone knows that the biggest impact comes when the Old Gray Lady springs into action. Word on the street is that the empty slot ...