Why is hydrogen sometimes classified as a non polluting fuel?

Answer 1

you only get water by burning hydrogen, no CO or CO2 or other polluting gases
though you still pollute when creating electricity (by burning fossil fuels) to produce the hydrogen and when manufacturing the hydrogen engines

Answer 2

because there is a lot of funding going into making it apear as if the car industry is trying to clean up its act - this was one of the requirements for California dropping its law requiring a percentage of cars to be zero emmision. (GM crushed all its very desirable electric cars, www.whokilledtheelectriccar.com). Thus postponing an alternative to oil industry dependent vehicles.

Hydrogen is only an energy transfer medium, ie it mostly needs electric or natural gas to produce. It has been promised for the last 15 years but is still at least 10 years away.
Electric can already be very efficiently delivered direct to where we park our cars at home or work without the need for hydrogen.
but there is no money for the oil companies and little tax revenue from this.
hydrogen is a very small molecule so leaks easily & takes up a large volume for the energy contained.
Hydrogen is proposed because current bateries "only" give a range of 250 miles per charge. nano Li-ion batteries, which have not had the government subsidies, can be 80% recharged in an hour. if greater range is required the tZero offers a small towable generator.

The great motoring media publicise the tomorrows (10 years away) hydrogen electric fuel-cell cars while ignoring currently available battery electric like the Tesla (built in part by Lotus in Norfolk) or the electric Bluebird which will go about 100mph faster than that infamous jet power drag racer they showed.

public perception of water is that it is clean, non-polluting, however much disease vectors causing ill health thrive better in damp conditions. Imagine the effect on the desert ecology around high private car use cities like las Vegas. don't expect any informative discussion or questioning of why in the press or parliment. Nor in the scientific establishment dependent on research grants

Answer 3

Wrong Hydrogen burns so hot it will produce Nitrogen oxide. another comparison is lightning it is so hot every time it lightening's it produce about 200lb. Another thing CO2 is not a pollutant as the plants take it in as fast as we produce it. The environmentalist want u to believe that CO2 has increased 30%, it has not go measure it.

Answer 4

Because people only think about its polluting effects when being burned, not about the polluting effects of its production.

Answer 5

Because when it burns, it combines with the oxygen in air and the only product is water vapour which is not a pollutant

Answer 6

its level of pollution to co2 is drastically different but you have a point.

Answer 7

Because when it burns, it combines with oxygen to make H2O, otherwise known as water.
Er - that's it.

Answer 8

Its only by-product is water

Answer 9

JONNIE B has no idea, keep banging the rocks together boy, the rest of you... XLNT