VOA News Foreign Minister Yang Jiechi says the accord was a positive step forward in recognizing different responsibilities between emerging and rich nations.
The Copenhagen accord was approved Saturday after marathon negotiations by the United States, China, India, Brazil and South Africa.
The accord says greenhouse gases and other emissions by all nations must be reduced enough to prevent average global temperatures - the key index of global warming - from rising more than two degrees Celsius. However, it does not set specific emissions guidelines for achieving that goal.
China and the United States are the world's biggest contributors to global warming. U.S. President Barack Obama called the accord a "breakthrough" in attempts to control global warming, but he said it still "not enough."



