80% of the world's current anthropogenic greenhouse gas emissions comes from 12 countries and Europe. National Geographic have produced this interactive graphic which examines the current emissions statistics. Scrolling over the graphic allows you to view stats for current emissions, cumulative emissions, emission intensity and emission (in tons) per capita.
Since 1850, nearly 1 billion tons of greenhouse gases has been added to the atmosphere. The PETM lasted 2000 years and resulted in the accumulation of 4.6 billion tons of carbon dioxide alone. This says that today's emissions are averaging a significantly greater intensity that those experienced in the 55mya.
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