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I've been interested for many years in various means of building houses to conserve energy. It has seemed to me there is enough technology to do that to save energy without having to invest a lot in something new or complicated. Now there is a Passive House which does just that.
And, there is always new technology which can be used: window coating that electrically regulates heat and light passing through.
Not all technological change has to be scary or confusing. Sometimes all you have to do is read a chart to pick the car with better fuel mileage or better clean energy consumption rate.
http://www.climatecentral.org/wgts/filetracker.php?file2dl=ClimateFriendlyCarsReport_Final.pdf
What's the best-fit car for where you live?
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