RE:RE:Urban FarmingI am not sure of all the details. I know that Petcan once had a hothouse inside a refinery operating on waste heat. other schemes revolve around using vent gases (methane) from landfill projects. Economics seem to be marginal, but probably a lot more economical than many other schemes being proposed.
I just want to throw it out there on this board since I know that posters here know what they are talking about !! Also Peyto is way more advanced in providing viable climate solutions than just about anyone IMHO . For that reason, I will be increasingly be investing in Peyto, even if the payout is less immediate !!