The Shirt-Sleeve Solution.

The article discusses how casual clothing can save the planet. Japan's "Cool Biz" campaign urges businesses to combat global warming by using less air-conditioning during the summer and letting employees doff their ties and suit jackets. In winter, "Warm Biz" encourages workers to layer up and turn the heat down. Last year's efforts reduced carbon dioxide emissions by 460,000 tons. Mazda Motor Corp. offers its Japanese employees up to 1,500 yen a month if they walk to work.