The Emissions Neutral Vehicle  

I often wonder how people will get around in a lower energy future (assuming the bleaker predictions of mass die off or world war 3 breaking out are incorrect of course). The third world often seems to be a useful guide, as they've already reached that lower energy future before us. One thing I always noticed about third world cities (before they became newly industrialised and everyone bought cars to sit in the traffic jams in) was the vast fleets of scooters. The other thing you notice is that efficient public transport systems don't exist - which is probably due to a combination of poverty and politicians deciding that aid money is best spent on things like weapons or improving their own personal standard of living.

Now - obviously streets full of Vespas isn't a pleasant thought, but assuming we ever find an efficient way of producing hydrogen, these fuel cell based motorbikes could be a good way of getting around.

These bikes were designed by the British team Intelligent Energy. The ENV bike is fully-functional and is based around their Core Fuel Cell from the ground up. The Core, which is completely detachable from the bike, is a compact fuel cell, capable of powering anything from a motorboat to a small domestic property.

It is also virtually silent (with noise equivalent to an everyday home computer) and its emissions are almost completely clean.