Last December, my colleague Matt Vespa took on Washington Post EcoLOGIC columnist Brian Palmer for his attack on Christmas tree farms. One year later and Palmer is still a grinch, this time lecturing readers about the virtues of eschewing incandescent Christmas lights for LED bulbs.
But not only did Palmer preach the merits of energy -- and money-saving -- LED bulbs, he also crunched the numbers and wrung his hands about the detrimental effects on Mother Nature of, wait for it, strands of popcorn strung around the ol' Tannenbaum (emphasis mine):


