Let's just say I am not the biggest fan of Global Warming or the effects to regulate industry to deal with it. This decision though by the California Air Resources Board (CARB) to begin attempts to lessen the greenhouse gases is good because it has a valuable side effect -- the removal of ethanol from the nation's gasoline system.
Ethanol it turns out creates more "greenhouse gases" then regular gasoline based on some science. Ethanol is expensive to make and transport and raises the price of food across the country. There have to be better sources of organic matter for fuel and some technology has been promising.
Much more to come on this.