Summary: Halloween is one of the most Eco-Unfriendly times of the year. Mom-daughter eco warriors Lynn Colwell and Corey Colwell-Lipson have taken the holiday on with Green Halloween (http://www.greenhalloween.org) and the National Costume Swap Day (http://www.greenhalloween.org/CostumeSwap/index.html). They are also co-authors of Celebrate Green! Creating Eco-Savvy Holidays, Celebrations and Traditions for the Whole Family and founders of the non-profit Green Halloween initiative. Learn how to make your Halloween fun less harmful for the planet. Check out the locations (http://www.greenhalloween.org/CostumeSwap/find.html) in your area that might be holding a costume swap or learn how to hold one in your area!