NECESITO SABER EN ESTE TEXTO DOS ORACIONES DEPENDIENTES       European Union leaders meeting in Brussels hailed an agreement on climate change, reached after weeks of wrangling over how much members should contribute to developing countries to adapt to global warming. European Commission President Jose Manuel Barroso called the deal an important breakthrough at a joint press conference with Prime Minister Fredrik Reinfeldt of Sweden, which currently holds the rotating European Union presidency. "We can now look the rest of the world in the eyes and say we Europeans, we have done our job. We are ready for Copenhagen. We have agreed on a negotiating mandate, we have a clear endorsement on some of the [European] Commission's proposals, notably on financing. I think this is essential." Under the deal, the 27-member bloc would contribute to an overall annual aid fund of $74 billion for poorer nations. But they didn't specify how much Europe would contribute compared with other nations. Mr. Barroso and Mr. Reinfeldt will be discussing climate change next week with U.S. President Barack Obama in Washington. The Europeans also began discussing the broad outlines of future leadership posts for the European Union, once a reforming charter known as the Lisbon Treaty is fully ratified. Members hope that will happen before the year's end. The charter sets up new offices, including the powerful post of president of the European Union. And Mr. Barroso says they agreed to keep in place stimulus measures to fight the economic crisis. "We must maintain efforts until the moment we finally overcome the crisis. At the same time, we need to prepare exit strategies in a coordinated way." The heads of state are expected to hold another summit next month to discuss candidates for the new EU presidency job. Possible contenders include former Prime Minister Tony Blair of Britain and current prime minister Jean-Claude Junker of Luxembourg.