The United States and the European Union are launching a new push for an international climate deal. Prospects for such an agreement dominated their latest summit which was hosted by President Obama at the White House on Tuesday. He said that the US and the EU are intensifying efforts to get a climate deal next month when negotiators from around the world meet in Denmark. Mr. Obama did not spell out a specific strategy designed to secure agreement, but European Commission Chairman, Jose Manuel Barroso was upbeat that a deal could be struck. He said that they are working on a framework agreement for Copenhagen.Meanwhile, UN Secretary General Ban Ki-moon says, world leaders are not likely to agree on a new climate change pact at next month's summit in Copenhagen. The UN Chief was speaking in London on Tuesady as African nations walked out of a pre-summit UN climate talks in Barcelona. He told reporters, the Heads of State at Copenhagen Conference may not be able to agree on all the details of the pact to replace the 1997 Kyoto Protocol.