Green Earth dry cleaning is a process billed as a nontoxic and environmentally friendly alternative to traditional cleaning methods. But preliminary studies suggest D-5, the silicone-based solvent ...

One of the six cleaners uses a product called "Green Earth" made from a chemical known as D5. The other businesses use a hydrocarbon-based dry cleaning process, city officials said.

Calif. Dry Cleaners Go Green April 1, 20081:00 PM ET Heard on Day to Day ... Listen Playlist ...