Sign this petition if you think that ski areas should start using biodiesel. Should Ski areas and cat operations in Canada be more proactive in the fight against global warming Won\'t they be affected the most Many US Ski areas have started to use BioDiesel.. why hasn\'t Canadian ski areas started BioDiesel significantly reduces greenhouse gas emissions compared to conventional Diesel Gas. BioDiesel does not require any modifications to the engine and decreases the wear on the engine. BioDiesel has seen wide adoption throughout the US. Why not in Canada