'Solar taxi' goes round the world
A solar-powered car has arrived at the UN climate change talks in the Polish city of Poznan after a round-the-world trip covering almost 40 countries.
The small blue-and-white three-wheeler tows a trailer packed with batteries charged by the sun. It can travel for 300km on a single charge and reach speeds of 90km/h (55mph).
BBC NEWS | Science & Environment | 'Solar taxi' goes round the world