Business Green: Canada-based biofuel and biochemical producer Enerkem said today it received environmental approval to build a commercial facility to turn municipal waste into biofuels. The C$70m (£39m) plant will be a joint effort with Toronto-based GreenField Ethanol, Canada’s leading ethanol producer, and is the first of its type in North America.. “This unprecedented project is set to change the dynamics of the waste and fuel industries by making waste that would otherwise be landfilled a …