Environment News Service: For the first time, a solar-powered car has traveled around the world, arriving at the UN climate conference in Poznan Thursday with the United Nations’ top climate official Yvo de Boer onboard for the last few meters to mark the historic moment. Owner and driver Louis Palmer, a Swiss schoolteacher, will keep his “solar taxi” at the conference until it closes on December 12, offering rides to delegates, ministers and the press, before he heads back to Switzerland. The solar …