After the EU signed Kyoto, requiring it to reduce carbon emissions 8% below 1990 levels by 2012, many products and design changed there, diverging from US standards. Cars, for example, became smaller, lighter; and more fuel efficient. Even US automakers not known for efficiency make 62 MPG cars for Europe. Germany and Spain introduced Feed-in Tariffs that paid homeowners to make solar power on their roofs.But most interestingly, for Americans now considering energy efficient retrofits with a new “Cash for Caulkers” program being considered, a whole new industry was created by the need to supply new energy efficient building innovations. Energy efficient glass.

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