According to Air Emissions Accounts, the Global Warming Potential decreased without interruption since 2006, diminishing 2.8% in 2013, year with normal rainfall values. However, 2013 registered the maximum percentage of renewal energy, influencing the indicator evolution. This reduction on GWP was mainly caused by the decrease on the carbon dioxide (CO2) emissions in the Electricity, gas, steam and air conditioning supply industry. In 2013, the GWP decreased more intensively than GVA (-0.8%). Portugal had the third lowest GWP per capita in EU28 in 2012.