One hard fact we have to face as a society is this: we are running out of fossil fuels. Oil, coal, and natural gas are still used to create 80-90 percent of energy worldwide. On one hand, it is good that we are running low on these fuels as they are commonly linked to global warming and climate change.
The quality of air that we breathe has never been more polluted than it is today. This is especially true if you live in a big city or are regularly around highly trafficked areas of automobiles. One of the biggest culprits adding to the pollution and causing poor air quality is consumer and industrial motor vehicles.