Greenpeace has teamed up with Ben & Jerry’s to bring climate-friendly freezers to the United States. The ice-cream maker’s “Cleaner Greener Freezer,” which is based on technology first developed by Greenpeace that utilizes Hydrocarbons as the refrigerant instead of Hydrofluorocarbons (HFCs) or other environmentally harmful fluorinated gases (more commonly known as F-gases), was unveiled at the Ben & Jerry's Georgetown ice cream shop in Washington, DC on September 29th, 2008.