The Flip Side of the Hydrogen Car

Water vapour from fuel cell cars, emitted at much lower temperatures - around 75 degrees - will be suspended in the atmosphere in larger droplets and will more readily condense and fall to the ground as water.

Published: 22-Dec-2007

We could be headed for a dangerous future on the roads. In our cities the main roads will be almost permanently wet, from, say, 7am to perhaps 7pm, even when the Bureau of Meteorology sees not a cloud in the sky.

Global warming, right? Not in this case.

Imagine a future where we're all driving cars that don't pump out noxious gases from the tail pipe. Rather, imagine we're all driving hydrogen-powered cars that emit only water vapour. Then imagine a traffic jam. There will be a mist hanging in the air on many days, making it
difficult to see very far ahead.

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