There are two reasons. One is that in North America it was only in 2008 that we started getting a tremendous supply of natural gas, and this supply has decreased the price. Europe is much more environmentally friendly. They do things like the 30% savings on carbon dioxide and 99% on particulates, the SOx and NOx, and so forth. There are 13.6 million natural gas vehicles in the world, but only 140,000 in North America.
