Radio Free Asia: The United States and China must set aside differences and cooperate to fight climate change, major environmental and foreign policy groups said last week in a joint report. “That our planet is now approaching a point of no return on the question of global warming is increasingly self-evident,” said the study by the Pew Center on Global Climate Change and the Asia Society. “Simply put, if these two countries cannot find ways to bridge the long-standing divide on this issue, …