Emissions: how low can you go?
A photo taken on October 31, 2013 in Haubourdin, northern France shows smoke from a factory. AFP PHOTO PHILIPPE HUGUEN (Photo credit should read PHILIPPE HUGUEN/AFP/Getty Images)
A photo taken on October 31, 2013 in Haubourdin, northern France shows smoke from a factory. AFP PHOTO PHILIPPE HUGUEN (Photo credit should read PHILIPPE HUGUEN/AFP/Getty Images)