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Do we have enough land to grow food and make ethanol for cars motorbikes etc?

Do We? Can a normal car run on ethanol?

Public Comments

1. Yes, but not with food crops. And no, a regular car can't run on ethanol.
2. Not if the crop you're thinking about is corn..the price of corn went up with recent demand for biofuel corn production,making it more expensive to buy it for food...It was estimated it would take up ALL arable land in the US to make enough corn for fuel use,and as a crop it needs vehicles to harvest and plant it..
3. Put simply, no we do not. you have to account for all the fuel used in the production of the so called biofuels, From the tractor to the combine the land rover etc. Even basic tools such as lawnmowers and chain saws use petrol. In order to maximise the production you need fertilisers and weed killers as well, using the current model most of these have oil as there basis in one form or another. Road haulage and rail transport is also reliant on oil. Your question states ethanol and I guess if you just look to things that can use ethanol we might just be able to do it but you have to account for biodiesel as well. A "normal" engine will not run on ethanol, it would require conversion
4. there is not enough agricultural land to feed everyone and provide fuel for our personal transport requirements at our current levels of consumption. And the land available is decreasing due to salination, overuse of deep "fossil" aquefers, reducing glaciers, peak fertiliser, desertification, errosion etc due to intensive industrial agricultural practices. while the population is set to increase to about 8bn. The planet can probably support about 3bn humans at a comfortable level about typical Mediterranean levels of consumption. see Last Hours of Ancient Sunlight http://www.amazon.co.uk/Last-Hours-Ancient-Sunlight-Transformation/dp/0340822430
5. Why not consider this car that runs only on water. We now have planes that runs on the same fuel, hydrogen.
6. It cost much more energy to make the ethanol than we could ever get from it.There is the pumping etc and then the evaporation and condensing.
7. no and no
8. Don't worry about it.. Its never going to happen where a lot to the majority of people drive around in flex fueled vehics..
9. no any ICE can be adjusted to burn ethanol, but the fuel system needs to be modified.
10. I reckon you could run a car on Hydrogen, the most abundent element in the universe, as we know it. Oil runs out, then all the oil nations become poor. If We are now making the biggest greenhouses on the planet to grow plants to sell in supermarkets and malls, why not build a few to grow food,for the starving. Hypocracy.
11. NO YES, in almost every instance a proportion of the fuel mix, in varying ratios, can be run through most engines, some requiring more adaptation than others.