October 25, 2006University of California at Davis unveils a digester that converts food scraps and other waste into natural gas and methane.TAGS:natural gas, garbage, ton, food
February 6, 2007HangerNetwork combines two hot concepts with venture capitalists--clean tech and kooky ad campaigns--to rid closets around the nation of pesky wire hangers. Photos: No more wire hangersTAGS:cleaner, garbage, U.S.