CM8001

Water may be a very dangerous pollutant. Depending on the weather condition produced steam may rise and form clouds around the road, or it may form fog at the road surface, or it may condense and drop on the road. Even in warm weather water on the road will be dangerous. In freezing weather it will make the road downright treacherous, especially if most or all vehicles on the road are powered by hydrogen fuel cell.

Fossil fuels were formed as the result of photosynthetic process that rook place hundreds of millions of years ago. Solar energy was a necessary ingredient in the formation, so the energy that is stored in chemical bonds in fossil fuels originally was invested from the sun.

The source of the required electricity—including its cost and efficiency, as well as emissions resulting from electricity generation—must be considered when evaluating the benefits and economic viability of hydrogen production via electrolysis.