Why go to liquid when vehicles can burn compressed natural gas?
Worldwide, there were 11.4 million natural gas vehicles by 2009, led by Pakistan with 2.3 million, Argentina (1.8 million), Iran (1.7 million), Brazil (1.6 million), and India (935 thousand).
with the Asia-Pacific region leading with a global market share with 5.7 million NGVs, followed by Latin America with almost 4 million vehicles.[1]
The US has 110,000 NGVs, mostly buses.[1] Other countries where natural gas-powered buses are popular include India, Australia, Argentina, and Germany.[2] In OECD countries there are around 500,000 CNG vehicles.[3] In some countries, such as Armenia, a large percentage of the fleet has been retro-fitted for bi-fuel operation, reaching between 20 to 30% of the cars on the road.[4]
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