20 miles per gallon that's a buck 50, a buck 60 a gallon.

So here is what we learned 8,000 gallons of gas equivalent to build one house.

Americans lose around 3.7 billion hours and 2.3 billion gallons of fuel sitting in traffic jams.

And not only did they do it, but within two years, they scaled up penicillin from preparation in one liter flasks to 10,000 gallon vats.

The best estimate of this is about 7 ton of CO2 or 0.06 gallon of gasoline ( 0.015 liter).

This contrasts with the 0.51 per gallon subsidy that US companies (a huge portion of which goes to a single firm) receive on ethanol. Thus, foreign producers can t compete unless their costs are 1.05 per gallon lower than those of American producers.

The barrel of oil equivalent (BOE) is a unit of energy based on the approximate energy released by burning one barrel (42 U.S. gallons or 158.9873 litres) of crude oil.

When the reactor arrived in Israel, Prime Minister Ben Gurion declared that its purpose was to provide a pumping station to desalinate a billion cubic gallons of seawater annually and turn the desert into an agricultural paradise .

Based on typical driving patterns, the Volt will get so many miles on the battery that it will achieve around 230 miles per gallon of gasoline!

And yet we may not realize that in a standard sedan, of all the fuel energy you feed into the car, seven eighths never gets to the wheels it's lost first in the engine, idling at zero miles a gallon, the power train and accessories.

And when we act like it is, and we stop entertaining the possibility that we could be wrong, well that's when we end up doing things like dumping 200 million gallons of oil into the Gulf of Mexico, or torpedoing the global economy.

Three of the US Army Engineers of A co. 321st Engineers sent to secure the wreckage were also killed by an IED 13 days later, US forces raided a car bomb factory where they discovered five vehicles, three 55 gallon barrels of chlorine, three barrels of nitroglycerine, artillery rounds and bombs.

As for hydrogen fuel costs, there are currently no fixed numbers, but the US target is 2 3 per kilogram by around 2018 (a kilogram of hydrogen has about the same energy content as a gallon of gasoline).

It would be smarter to act cautiously by implementing a low carbon tax of about 0.5 per ton about 0.5 US cent per gallon of gas or 0.1 euro cent per litre of petrol and increase it gradually through the century.