I think part of the problem in Canada, and in North America in general, is the lack of faith in CNG in general. CNG technology took off in the late 1980s and the 1990s, but the technology at that time wasn't quite where it is today. The cost of natural gas back then was on par with the cost of gasoline and diesel. Because of the lower efficiencies of using that technology, we started seeing in this region, and likely across Canada and the U.S., CNG disappearing from the marketplace.
CNG didn't stop developing, however. While in North America traditionally we've paid low fees for gasoline and diesel, around the globe the technology has continued to improve. In continents like Europe, for example, there's always been a disparity in the cost of diesel and gasoline compared with CNG. The technology that we're leveraging with respect to biofuel really stems from the European model, where they looked to develop this gas because of economic reasons. They started running bus fleets, garbage fleets, and taxi fleets using CNG versus gasoline and diesel. Only now are we starting to realize the benefit of doing the same here in North America.
More importantly, though, to answer your question, we're also realizing that the technology is such a dramatic improvement over what we used to have years ago that it's becoming quite viable. Again, the cost difference is really marginal. When we look at a 20% difference over a 10-year period, with the cost of gas being less than half the cost of diesel, that's quite a significant change from what we used to have 20 years ago.