The first solar-powered car to travel around the world ended its journey at the U.N. climate talks, arriving with the message that clean technologies are available now to stop global warming."This is the first time in history that a solar-powered car has traveled all the way around the world without using a single drop of petrol," said Louis Palmer, the 36-year-old Swiss schoolteacher and adventurer who made the trip. The car, which runs noiselessly, can travel up to 55 mph and covers 185 miles on a fully charged battery. Read More.