History of the European Union since 2004 the decision on 31 March 2010 to abolish the Western European Union. In 2007, the fifth enlargement completed with the accession of Romania and Bulgaria on 1 January. 53 MEPs joined the Parliament along with two commissioners, for which two new posts were created in the Commission. The post created for the Romanian Commissioner was Multilingualism, which was criticised by some for its narrow scope. Negotiating process with Croatia as an official candidate country had been stalled for 10 months due to Slovenia's blockade of Croatia's EU accession, which was lifted in September 2009 after an agreement. Croatia has since
European Union Emission Trading Scheme safe carbon capture and storage (CCS) and innovative renewable energy (RES) technologies on a commercial scale within the European Union. Ahead of its accession to the EU, Croatia joined the ETS at the start of Phase III on 1 January 2013. This took the number of countries in the EU ETS to 31. On 4 January 2013, European Union allowances for 2013 traded on London's ICE Futures Europe exchange for between 6.22 euros and 6.40 euros. Phase IV will commence on 1 January 2021 and finish on 31 December 2028. The European Commission plans a full review of the Directive