UNEP’S emissions gap report 2013:summary
Author(s)/Corporate Author (s)United Nations. Economic Commission for Africa;
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At present, global greenhouse gas emission levels are significantly elevated compared to 2020 levels corresponding to realizing the 1.5° C or 2° C targets, and are nonetheless rising. The most recent estimates of global greenhouse gas emissions,50.1 Giga tonnes of carbon dioxide equivalent (GtCO2e) per year (range: 45.6–54.6 GtCO2e per year), are for 2010.