(10) The Union has agreed to achieve a reduction of at least 20 % of its greenhouse gas (GHG) emissions by 2020 (30 %, provided that other developed countries commit themselves to comparable emissions reductions and that developing countries contribute adequately according to their responsibilities and respective capabilities); to ensure that 20 % of energy consumption comes from renewable energy by 2020; and to achieve a 20 % cut in primary energy use compared with projected levels, by improving energy efficiency (12).