The future of sustainable public transport could come through fueling buses with gas made from two of the things that we seem to have a lot of, human waste and food waste.
Derek Markham, Treehugger
Fri, 11/21/2014 - 3:26pm
The future of sustainable public transport could come through fueling buses with gas made from two of the things that we seem to have a lot of, human waste and food waste.