Of the 55 refineries closed in America in the last 10 years they were all closed for economic reasons mostly oil company mergers. Not a single one was closed for environmental purposes or objections.
I've been experimenting more and more with LN2 liquid nitrogen. I've used it in battle on 'Iron Chef America ' but have also made some great ice creams at home for my family. Since it freezes basically on contact you can have ice cream ready in mere minutes.