U.S. carbon dioxide emissions have been essentially flat since 2000, while global emissions are rapidly increasing, according to new figures released by the Global Carbon Project. Global carbon dioxide emissions are outpacing even the worst-case projections of the United Nations’ Intergovernmental Panel on Climate Change, according to the Global Carbon Project. Global emissions rose 2.9 percent in 2007, keeping total emissions above 2001 levels, higher than the worst-case emissions projections released that year by the IPCC, according to the Heartland Institute, a public policy think tank that examines global warming theory and policy. The U.S. is not responsible for the...