Brussels, 26 mars 2010 (Agence Europe) - Disappointed at the outcome of the United Nations global climate change conference in Copenhagen (COP15), EU heads of state say that the momentum must be kept up and the Copenhagen Agreement built upon to give a new impulse to the international negotiations under the aegis of the United Nations and take advantage of the time leading up to COP16 in Cancun, Mexico, on 29 November to 10 December 2010 to build alliances with key international partners....