Sixty-seven percent of the world’s carbon dioxide output originates from ten countries, according to a new study that measured the CO2 output from 112 countries. The study conducted by Carnegie University and the Center for International Climate and Environmental Research did not solely focus on a country’s CO2 emissions, but zeroed in on the entire supply chain that extracts and consumes energy resources. The report looked at where fuels originated from, all the way to where products are made using the fuels, and that are ultimately consumed. The ten countries that make up the sixty-seven percent of CO2 output include the U.S., China, Russia, Australia, Canada, India, Norway, Saudi Arabia, Kuwait, and Iran. The report found that fossil fuel resources are highly concentrated and that the majority of fuel that is exported winds up in developed countries. Most of the countries that import a lot of fossil fuels also tend to import a lot of products. China is a notable exception to this trend. The report seeks to help negotiators for a global climate pact to look at the total picture of the production, and consumption of C02 all along the world’s supply chains. Their argument is that countries should not be judged on CO2 emissions alone, but how and where carbon is found within every country. It is a prudent approach to expand the discussion and responsibility of the world’s CO2 output in an effort to stem global climate change.