EU leaders have urged other world powers to follow their lead after provisionally agreeing a deal in Brussels to help developing countries combat climate change.Poorer nations are expected to need around 100 billion euros a year by 2020 to tackle rising temperatures. Europe says it will pay its ‘fair share.’ ‘‘Next Tuesday, Prime Minister Reinfeldt and myself will meet the American President and we will say: ‘We are ready, lets engage, lets make Copenhagen a success’…. our offers are not a blank cheque. We are ready to act if our partners deliver,’‘ said EU Commission President Jose Manuel Barroso. Even though the agreement heals rifts between member states over how to split the cost, some say the deal falls short and is just hot air ahead of climate talks to replace the Kyoto protocol in Copenhagen. Joris Den Blanken from Greenpeace said: ‘‘Today the EU backed global funding for climate action in developing countries but they did not put their money where their mouth is. They did not indicate how much they would put on the table.’‘ Away from climate, leaders also agreed a deal aimed at ratifying the Lisbon treaty. That came after the President of the Czech Republic, Vaclav Klaus, who had been holding out on signing, raised no further objections after securing an opt-out clause.