Here is a great resource for staying up to date with what's new and developing in the "green movement". That term is already getting overused, but this website/magazine is a very good example of what's good in the movement.
So far, in every magazine I have discovered at least a handful of developments that I haven't heard about. This current issue has an article about how Maine is moving toward weatherizing every house in the state. Click Here. There is another article that explains all about R-Factors. Click Here
If you have an interest in a more efficient home, this is a must see website.
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