You have been allocated to a scientific commission whose mandate is to research ways of reducing air pollution from motor vehicles. Your specific assignment is to research the kinds of alternatives -fuel vehicles which are presently under development. Examine the merits and demerits of each, and decide which would have the least environmental impact.
• Electric
• Natural gas
• Hydrogen
• Fuel Cell
Research on each type vehicle. Discuss the environmental and economic advantages and disadvantages of each type and select the one that, in your opinion, gives the best environmental impact at a reasonable cost. Give evidence to support your selection.