Reuters: Everyone on the planet could get identical greenhouse gas emission rights as part of a drive to halve emissions by 2050, according to a study by Chinese scientists on Monday. The proposal, presented on the sidelines of a December 1-12 U.N. conference on fighting global warming, would force nations such as the United States which have used most fossil fuels since the Industrial Revolution to buy emission rights from poor nations. “Developed countries shall take the lead in …