COMMISSION STAFF WORKING DOCUMENT Accompanying the document Report from the Commission Second Biennial Report of the European Union Under the UN Framework Convention on Climate Change (required under Article 18(1) of Regulation (EU) No 525/2013 of the European Parliament and of the Council of 21 May 2013 on a mechanism for monitoring and reporting greenhouse gas emissions and for reporting other information at national and Union level relevant to climate change and repealing Decision No 280/2004/EC and Decision 2/CP.17 of the Conference of Parties of the UNFCCC)