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Just been watching Top Gear (a repeat 'Best of...') and it had the Honda Clarity on, the first production car to utilise a hydrogen fuel cell, it's only emission being H20... apparently a good thing right?
But a couple of things occured to me: 1) what happens when you have a million+ of these things in your city? Just how much water vapour is going to be going into the air? And 2) isn't H2O vapour one of the most powerful greenhouse gases going? So how can pumping mega-tonnes of the stuff into the atmosphere be an OK thing?
Just curious 🙂
Posted : 01/02/2009 8:46 pm
