Does the Honda FCX Clarity fuel cell vehicle contribute to global warming?

Yes...

It is still fuel, not a hybrid.

The amount of water vapor in the air is a product of temperature and pressure. If there's too much water in the air, it rains.

In other words, water does not drive climate change. Climate controls the amount of water in the air, no matter what is coming out of a cars exhaust pipe. And yes, the water that will be in the air naturally does have a warming effect.

The honda fcx only contributes to global warming if the energy used to produce the hydrogen came from fossil fuels.

No, water vapor does not do anything for global warming. Clouds are water vapor and they cool the earth.

However, the hydrogen for the FCX here in LA is made by cracking natural gas and discarding the carbon into the atmosphere as CO2. Net benefit is zilch.

here`s the great part any product produced,and that is declared earth friendly is a contributor to so called global warming...in one way or another oil was involved in building green products.

i think of they could be completely happy approximately it, when you consider that we at the instant get ninety six% of our hydrogen from fossil fuels (see hyperlink below). Plus they are merely going to lease one hundred-200 of those FCX readability vehicles, and for $six hundred/month by way of various problems with hydrogen vehicles (back, see hyperlink below). i think of they could be plenty greater dissatisfied if we switched to electric powered vehicles.