(Adds dropped words in first paragraph) BEIJING, June 4 (Reuters) - China said on Monday that an EU proposal seeking to limit global warming to 2 degrees Celsius did not have scientific backing and it needed to be studied before it was used to set policy. Ma Kai, director of China's National Development and Reform Commission, which steers climate change policy, told reporters that the EU proposal had not been subjected to proper study. "I fear this lacks a scientific basis," he said of the EU's proposed goal.
