Car race on 'hydrogen highway'

Norway has marked the opening of a 560 kilometre "hydrogen highway", with a car race between several dozen hydrogen-powered cars.

Oil and gas producer, StatoilHydro, has built several hydrogen filling stations along the route which runs between Oslo and Stavanger, to cater for cars with fuel cells.

Ulf Hafseld from StatoilHydro says they believe hydrogen engines are an effective alternative to carbon dioxide emitting petrol engines.