TreeHugger used to make a very big deal of Halloween but we are so much more serious now, and leave all the fun stuff with kids to Parentables. But back in the day we did a terrific How to Go Green: Halloween with everything you need to know about the holiday, a great slideshow of Candy and Costumes for a Sweet and Spooky Green Halloween and a dire 10 Green Halloween Costume Ideas Inspired by the Planet's Perils that shows you how to dress as a drowning polar bear, a dumpster diver or a dying bee.
How To Go Green: Halloween
Our Guide from a couple of years ago is still relevant. How to celebrate it on the cheap.