Heathrow expansion would not break European pollution law - BBC

London's Heathrow airport could build a third runway without breaking European pollution laws, according to research published ahead of a British government decision on airport expansion, the BBC reported on Thursday. Research from the University of Cambridge showed that potentially increased levels of poisonous nitrogen oxide from the runway would be offset by decreased pollution from traffic nearby, the BBC said. The research, with no formal links to the airport or the government, used small s