Because of heavy government subsidies, the vehicles are cheaper to buy and run and produce fewer pollutants.

Additionally, they produce pollutants and acid rain.

The answer lies in finding a fuel that will not produce carbon dioxide and pollutants.

Part of that national standard would involve the development of cars that run on alternative fuels and produce fewer pollutants.

Also, burning methanol from any source produces formaldehyde and other pollutants.

These technologies are more efficient and produce fewer pollutants.

It does not produce or emit pollutants, toxins or any greenhouse gases.

Even the most efficient waste plants produce pollutants, and not many communities believe that they will be properly maintained.

These, though, produce pollutants, and it is on these that we want to impose rules.

By saving energy, we produce fewer CO2 emissions and other pollutants.