Originally Posted by оо.
Get TuneEcu. Add +50 % fuel to all maps. Run with E85 and save Polar ice packs?
Ethanol, (at least in the US) is far more energy intensive and generates more greenhouse gasses than gasoline. If you are looking to decrease GHG, than LNG or CNG (not readily available in motorcycles yet) are the best bet. As far as motocycles go, if this is your primary concern, a KTM twin is probably not your best bet. Lots of small thumpers out there that will get 65 mpg+, which will be a far more substantial reduction in emmissions than using any particular fuel source.
Ethanol is also very expensive in the US right now due to poor corn crops, (which of course is also driving the food costs up).