Alternative Fossil Fuels
Compressed natural gas (CNG) is a cleaner burning alternative to conventional petroleum automobile fuels. The energy efficiency is generally equal to that of gasoline engines, but lower compared with modern diesel engines. CNG vehicles require a greater amount of space for fuel storage than conventional gasoline power vehicles because CNG takes up more space for each GGE (Gallon of Gas Equivalent). Almost any existing gasoline car can be turned into a bi-fuel (gasoline/CNG) car. However, natural gas is a finite resource like all fossil fuels, and production of natural gas is expected to peak soon after oil.
Natural gas, like hydrogen, is another fuel that burns cleanly; cleaner than both gasoline and diesel engines. Also, none of the smog-forming contaminates are emitted, seen substantially by the latter. Around the world, this gas powers more than 5 million vehicles, and just over 150,000 of these are in the U.S.
Read more about this topic: Alternative Fuel
Famous quotes containing the words alternative and/or fossil:
“Education must, then, be not only a transmission of culture but also a provider of alternative views of the world and a strengthener of the will to explore them.”
—Jerome S. Bruner (20th century)
“The earth is not a mere fragment of dead history, stratum upon stratum like the leaves of a book, to be studied by geologists and antiquaries chiefly, but living poetry like the leaves of a tree, which precede flowers and fruit,—not a fossil earth, but a living earth; compared with whose great central life all animal and vegetable life is merely parasitic.”
—Henry David Thoreau (1817–1862)