The largest share of total greenhouse gas emissions comes from CO 2 , which is mostly generated by burning fossil fuels. CO 2 emissions accounted for 80.8% of total greenhouse gas emissions in 2015, 1.9% less than in 2013.
Med toplogrednimi plini prevladuje CO 2 , ki nastaja predvsem pri izgorevanju fosilnih goriv; v letu 2015 je delež tega plina znašal 80,8% in je bil glede na leto 2013 nižji za 1,9 %.