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Alpine glaciers are disappearing

This page on the Austrian Greenpeace site has a very powerful flash tool. Move the slider back and forth to compare sets of 2 images of different glaciers from the early 1900’s and today. What an...

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A low-cost traffic monitoring and data collection system

When I grew up in Europe in the 1970s and 1980s, there was a noticable shift in public opinion away from support for traffic-enabling policies towards support for traffic-restricting policies. This...

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Power Factor and Compact Fluorescent Bulbs (CFL)

What is the power factor? What is the power factor of compact fluorecent bulbs? Do manufacturers of compact fluorecent bulbs cheat with their promised energy savings? Continue reading for answers to...

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Climate change and capital investments

A comment posted in response to an article on Boston.com that predicted yet another day of rainfall: Now you know why solar panels are not exactly a sure bet for an alternative energy source. My 6KW...

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