Global greenhouse gas (GHG) emissions have increased at an annual rate of 1.5%, over the last decade, with only a slight slowdown from 2014 to 2016. In 2018, the growth in global greenhouse gas emissions resumed at an annual rate of 2.0%, reaching 51.8 gigatonnes in CO2 equivalent (GtCO2 eq) excluding land-use change and 55.6 GtCO2 eq including land-use change.