Agence France-Presse: China’s greenhouse gas emissions will peak between 2030 and 2040, the country’s science and technology minister said Monday, as crunch talks on climate change were set to get under way in Copenhagen. Wan Gang said the precise timing of the level would depend on China’s economic growth, rate of urbanisation and level of scientific development. "There are some uncertainties here, so it is difficult to say whether it will be in the beginning, the end or the middle, but I can say …