Here are links to other organizations that you may find useful:

sustainableduxbury.blogspot.com
www.350.org
Massachusetts Climate Action Action Network
New England Sustainable Energy Association
Great Site for other info - Sustainable Milton
NStar
Wilderness Society
GWEN Global Warming Education Network
Union of Concerned Scientists
Massachusetts Recycling Coalition
New England Wind Forum
More facts on recycling
See How the city of Cambridge is going Green
Great site for anything that has to do with green gardening or yard care 
GATRA Bus service for Duxbury
Sea Change : Reversing the Tide