Prior to this a lot of people (including myself) felt that adding any insulation anywhere on a building was a net environmental benefit. I.e. that the energy savings to the building was so great that it made the enviro impact of the foam trivial. Sorry planet!

Calculating the Global Warming Impact of Insulation
Subtitle: If you insulate with certain types of foam, thick insulation puts the planet at greater risk than thin insulation Images: Musings of an Energy Nerd In June 2010, Alex Wilson published a gr…

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