A line chart shows global energy-related CO2 emissions from 2010 to 2050 in metric gigatons. The historical line shows emissions around 35 metric gigatons, rising to a projected 50 metric gigatons by 2050 according to the 2014 projections. Current policy projections indicate a reduction towards approximately 38 metric gigatons, while possible future policies are projected to lower emissions to about 30 metric gigatons.