![]() has almost doubled its annual emissions since 1960, other developed economies have made more progress in limiting their emissions. and Japan annual emissions represent a third of the emissions of this group, while the developing economies of China, Russia and India represent two thirds. ![]() These five countries account together for 60% of all annual global emissions. Specifically, the largest contributors were China (26%), U.S. In 2010, of the roughly 8.6 billion tons emitted globally (Gt), the top annual emitters included China, India and Russia. Recently, some developing countries are beginning to contribute annually as much as developed countries. and France, each representing about 6%, and Germany with 5%. The next largest contributors are the U.K. Today’s Russia’s share in cumulative emissions is 11%, followed by China with 10%. In fact, the reduction in its global share is due to the changes in the global scenario, as big developing economies emerge. Moreover, it is still the second largest contributor of annual global emissions. ![]() has slightly reduced its global share, but is still the largest contributor of cumulative emissions (by 2010), accounting for a not-so-modest 27% of the total. Today, total global cumulative carbon emissions have quadrupled from 1960’s levels to about 335 billion metric tons. The second largest contributor by 1960 was the U.K., which had emitted approximately 15%, followed by Germany and France, with 11% and 5% of the total cumulative world carbon emissions, respectively. had been the biggest contributor to the cumulative amount of carbon emitted globally, representing almost 40% of the world cumulative carbon emissions from fossil fuels and cement production. The infographic above, which I’ve produced using data from Oak Ridge National Laboratory, sheds light on the cumulative emissions to date from major emitters. Given the climate dynamics and the persistent effects of past emissions in the atmosphere, limiting climate change will require substantial and sustained reductions of green house gases. Cumulative CO2 has increased by 40% since pre-industrial times –reaching unprecedented levels in at least the last 800,000 years, and the ocean has absorbed 30% of all emitted anthropogenic CO 2, causing ocean acidification. Particularly, anthropogenic CO 2 emissions that have concentrated in the atmosphere are the largest contributor to total radiative forcing, which is leading to surface warming. More than 200 lead authors and 600 contributing authors from all over the world prepared the WGI contribution, and reported “ it is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20 th century”.
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