Before the meeting, Fredrik Reinfeldt warned that the EU's credibility is on the line regarding the Climate summit and member nations must agree on an aid figure in which each individual country must pay to help developing nations fight global warming.
("We have a risk for a clear deadlock in the negotiations," he said.
"The emerging economies are looking for financing and without it they will not make the required reduction targets.")
At the summit another issue is grabbing the headlines. While EU leaders are working hard to get the Czech Republic's agreement to the Lisbon treaty, the only country left to do so, behind the scenes the main gossip concerned the favourites put forward for a new full-time EU President, created under the treaty.
The president of the Council of EU leaders will be picked unanimously for a two-and-a-half-year term, strengthening the current system of a six-month presidency that member states hold in turn.