Internal combustion engines have been around in their present form for one hundred years and technological advances will continue to make them cleaner burning. At the same time, there may be revolutionary technologies that will over time become more important, for example fuel cells, and we need to understand the potential impact of these in the coming decades. But for the foreseeable future, combustion engines will require fossil fuels. This statement is right on target and very realistic. Some want to abandon petroleum immediately, but this is not realistic.
Petroleum is buried too deeply in our daily energy needs to be replaced instantly.
Notice that all of these companies point out the low emissions and higher efficiencies that fuel cells offer. This could be more wishful thinking rather than intelligent foresight on Mr. Sutherland's part. I would certainly like to think that by 2050, our dependence on petroleum will have decreased to well below half of the world's needed energy. The site is well planned, maintained, and designed. Shell Hydrogen has been established to ensure that Shell is still an energy company when the oil wells begin drying up.