The past decade was the first in two centuries with increasing C02 emissions intensities, owing to a “coal revival,” in contrast with the rapid conversion to natural gas in the 1990s. In 2012, the global share of coal reached an estimated 29 percent, which, in relative terms, was higher than and, in absolute terms, about twice as large as the time of the first oil crisis in 1973. In the 2000s, China alone added more coal power capacity each year than the total installed capacity in the United Kingdom of Great Britain and Northern Ireland (International Energy Agency, 2010, p. 202). Most recently, global C02, emissions have grown at a slower pace, namely 1.4 percent in 2011 and 1.1 percent in 2012 and thus decisively below the 2.9 percent average since 2000. The recent short-term trend was driven mainly by absolute decreases of emissions in the EU and the United States as well as a below-trend increase in China, which was primarily due to the lingering economic effects of the global financial crisis.