Is the reduced carbon footprint of a fluorescent bulb sufficient to mitigate the mercury content in it? (dotearth.blogs.nytimes.com)
And a very low carbon footprint of 5.1 annual tons of CO2 emitted. (motorweek.org)
If you look at it from a personal perspective, you can cut your own carbon footprint in half just by leaving meat off your plate for one year. (onegreenplanet.org)