A draft Danish text is proposing the world agree to halve greenhouse gas emissions by 2050 at the Copenhagen climate conference.It suggests rich countries carry 80% of these global emission cuts. However, it does not spell out shorter-term targets for rich countries, a key demand of developing nations and an issue in talks between the European Union and China. At a meeting in the eastern Chinese city of Nanjing, Prime Minister Wen Jiabao restated Beijing’s position that European countries must lead the way. As the world’s top greenhouse gas emitter, China has vowed to cut “carbon intensity” by around 40 percent by 2020, compared with 2005 levels. China and India both oppose the Danish text to halve emissions. Denmark insists it was merely consulting and not a formal proposal. Its capital city of Copenhagen is setting an example as it prepares to host the summit and celebrate Christmas. Pedal power is being used to illuminate the tree in the Town Hall Square.