You are correct Blue Bee. Compressed Natural Gas as well as Liquefied Petroleum Gas have both been used for generations to power some medium duty trucks. The City of Florence, Alabama I think it was snagged a Carter era grant to convert their garbage dump into a CNG fueling station for police cars. The LP gas industry has burned LPG for years to deliver LPG to the Propane tanks of chicken houses for heating, silos for grain drying, and rural households for uses of every kind.
The reason CNG and LNG are in the news as a motor fuel is the almost non polluting nature of this fuel. That is why there are so many gas turbine power plants being built nowadays. The "sorta of" GREEN environmentalists love NG because of the nonpolluting nature of this gas. The lunatic fringe of the GREEN movement however is bound and determined to banish every form of artificial lighting from bees wax candles to nuclear reactors. If the lunatics win, the next time your children ask for a new computer made in China, you'll be buying an abacus.
But the cleanest or the least air polluting form of home lighting fuel is whale oil. Go figure.
One side issue on home lighting:
"In 1885, John D. Rockefeller wrote one of his partners, “Let the good work go on. We must ever remember we are refining oil for the poor man and he must have it cheap and good.” Or as he put it to another partner: “Hope we can continue to hold out with the best illuminator in the world at the lowest price.”
Even after 20 years in the oil business, “the best . . . at the lowest price” was still Rockefeller’s goal; his Standard Oil Company had already captured 90 per cent of America’s oil refining and had pushed the price down from 58 cents to eight cents a gallon. His well-groomed horses delivered blue barrels of oil throughout America’s cities and were already symbols of excellence and efficiency. Consumers were not only choosing Standard Oil over that of his competitors; they were also preferring it to coal oil, whale oil, and electricity. Millions of Americans illuminated their homes with Standard Oil for one cent per hour; in doing so, they made Rockefeller the wealthiest man in American history."http://www.thefreemanonline.org/columns/john-d-rockefeller-and-the-oil-industry/
Folks, greed and envy is certainly involved in the oil business, as certainly as greed and envy is involved in the higher education lobby or in beekeeping. The trick is figuring out who are the envious ones and who are the greedy ones. However it seems all to often that they are one in the same.http://www.tshaonline.org/handbook/online/articles/doe01
I am not a big conspiracy buff. But before any of you buy into the bleep an bull story about oil, now coming out of Washington, read a little history. I am of the opinion that there is much more recoverable oil, and at a much lower price than Washington is willing to acknowledge. Anyway DC is the largest holder and beneficiary of oil wealth in the USA so it is in my and in your Uncle Sam's long term intrest to extract the highest price for this oil while at the same time extracting the smallest amount of oil. In 1930 Texas oil was $1.10 a barrel. By 1931 the governors of Texas and Oklahoma were forced to use their National Guards to seize the oil fields in their states in an attempt to RAISE crude oil prices from $.10 (yes that is ten cents a barrel) oil finally settled at $.40 per barrel.