There’s a wonderful Home Energy Efficiency Team that’s been leading energy conservation “barnraisings” in Cambridge. They gather volunteers, both skilled and novice, and implement low-tech strategies to stop air leaks around basement sills and doors and windows. Check out this video to get a feel of the fun and learning that’s taking place. http://blip.tv/file/1494341/
And if you’ve done all the weatherizing and insulating that you can do in your home and still want to cut your carbon use, check out this video for instructions on how to make a small solar heater that multiplies the solar gain of a sunny window.