Since we have had a number of alternative fuel threads, I wanted to point to one about methanol fuel and the environment. Today most methanol is produced by consuming natural gas, mainly CH4, and carbon dioxide, CO2. It can also be produced from most agricultural waste products, garbage, sewage, and even in a plant in iceland from CO2 and geothermal electricity. If those things run out, you can always make it from coal, but I doubt those things will ever run out simply get more expensive. All the technology including running it in cars has been created. Tailpipe emissions are lower with similar cost emission control equipment. Depending on blend percent evaporation emissions may be higher or lower than E10. Ghg production should be slightly lower than gasoline. If methanol production is done in something like a ccgt power plant, with a steam turbine the extra energy can be used to create electricity, and some of the CO2 can be captured and used to produce the methanol. In otherwords if we reuse the heat to generate electricity, methanol can bring similar ghg reduction as cng cars but use most of today's liquid fuel structure. Is it better for the environment when burned in cars? Of course it is. Fracking or renewable production is much cleaner than getting at the oil sands. As a marginal source of liquid fuels it also does not compete like corn ethanol for food. Cars were produced and sold in california. It seems a flex fuel M85 was found to be optimum at preventing the methanol problems - cold starts, invisible flame, refueling infrastructure. Cars produced are only a little more expensive and since M85 can run at higher compression and advanced spark setting the engines are more efficient than gasoline. The only drawback is larger fuel tanks. What would be needed is adding M85 to the flex fuel definition for auto manufacturers and strengthening it. In the California experiment they found that 10% of gas stations needed to provide the fuel for people to feel comfortable, but making the vehicles flex fuel removed anxiety. The thing that deterred methanol in the california experiment is low gasoline prices. A higher oil tax is the most straightforward way to get blenders and gas stations to invest puting in M85 pumps. At today's prices M85 would be about $3.15/gge or 1.75 gallons, if full state and federal road taxes are applied. A drop in oil prices or rise in methanol prices would deter it again. Blast from the past when bush 41, wanted methanol to reduce tailpipe pollution Researchers Say Methanol May Not Fulfill Clean Air Hopes - New York Times California did the test, and tailpipe emissions were lower like the methanol proponents said.