That's cut our carbon footprint by about 25 %, but we're still at 11 tonnes per year between the four of us. (treehugger.com)
Also, this cuts down on the need to build large facilities - cutting the carbon footprint way back. (treehugger.com)
Those of us who spend a significant portion of our time thinking about our environmental impact often dream of magic solutions to cut our carbon footprint drastically. (treehugger.com)