It's supply chains mapped,
Sourcemap is an open source publishing platform where businesses and individuals can key up and keep track of where our objects and services are actually coming from. Breaking down the carbon footprint vs. actual weight, distance travelled and CO2 emissions for currently 577 items, Sourcemap views it up to a place of more informed sustainable decisions.
Check out Sourcemap's cousins at Senseable dealing with the other end of the chain at Trash Track.
And a nice breakdown by Goodlifer
here.