How often have you gone into a store or business in the summer, where you needed to wear a sweater or coat to stay comfortably warm? Think movie theaters, for example. No doubt, Americans waste a lot of energy over-cooling in the summer and over-warming in the winter. Think of those businesses that keep their doors open in the winter, heat spilling out into the frigid outdoors. When we bought a Christmas tree this year, the lot was using propane heaters to heat the outdoors. As reported by Newsweek, Japan is using common sense in an effort to make itself less dependent on foreign fuel and in an effort to reduce carbon emissions:

In 2005, Environment Minister Yuriko Koike, a pioneering female politician, was seeking ways to slash energy use. And she came up with the Cool Biz campaign. The idea: Government would cut energy bills by keeping thermostats in its buildings at 28 degrees Celsius—82.4 degrees Fahrenheit—during the summer. It quickly produced results and was adopted by the business establishment as well. Since Japan's energy mavens realized that simply unbuttoning a shirt collar can make people feel about 4 degrees cooler, dressing down became part of the Cool Biz mentality. (Here's an ABC News story on the phenomenon.) The only people we met with this week wearing suits, ties, and cufflinks were Americans.