
“My farts smell like rose petals, tee hee!”
Nelly from Morlock Enterprises sent along the good news that Honda’s FCX Clarity will be the first commercially produced zero-emission hydrogen fuel cell car. I believe BMW tested a fuel cell car a few years ago but apparently, that model never made it to market. The good news, FCX emits water vapor instead of carbon monoxide like its regular fueled and hybrid powered cousins. The bad news, the dearth of hydrogen refueling stations ensures slow adoption of this technology. Hydrogen is also fairly costly produce with fossil fuels being the easiest method to produce the gas. Taking the use of fossil fuels to produce hydrogen into account, the carbon footprint of the FCX might actually be larger than a regular car.
Still, this is certainly a step in the right direction. I have every confidence that if enough money is thrown at hydrogen, a method to produce it cheaply and cleanly will be developed (that’s the very tiny optimist in me talking). Instead of outright selling the FCX, Honda plans to lease the vehicles to select customers in California beginning this July and later in the year in Japan. A three year lease goes for $600 a month. Honda plans to make 200 of these over the next three years.
This sounds really awesome and forward looking and all, but Nelly asks the obvious question.
If all cars were hydrogen cars will they emit enough water vapor to cause major roadways to always be damp? Would this dampness be enough to cause black ice or freeze? Would it be enough to make a difference to humidity around the roadways (if I break down in the summer do I want to be standing around the hot road to begin with, let along one that has water evaporating off it).
AND
The internals of the car seem to involve some bit of water… will that water freeze in the winter? Does it matter if it does?
Certainly it will take many many many many years before hydrogen vehicles are adopted widely enough to even speculate about their environmental impact. But say they were, would copious amounts of water vapor affect our climate? Some of you geeks out there with strong science jutsu, this challenge is for you!
[Via BBC News]
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