Often I have read or heard environmentalist or energy conscious individuals saying to dry their clothes naturally with the sun because it saves energy. This is indeed true.
In fact, the sun’s benefit goes much beyond saving energy. The ultraviolet radiation from the sun kills germs very effectively and removes odor. No wonder people talk about the “fresh” smell of sun dried clothes.
Researchers have found that clothes carry more germs today than before, in part due to the mobility of people. Washing clothes in cold water, while being a commonly used energy saving measure, does not remove germs... Read more http://greenremodelforum.com/grf/blog/archives/360