In Washington, progress on climate change legislation is slow-moving. But even wider differences between the developed and developing world kept climate change negotiators from reaching an agreement Friday, in the last meeting before the December summit in Copenhagen.

Poor countries say the 17-20 percent greenhouse gas reduction the U.S. House and Senate bills envision is not deep enough. While U.S. officials note that China and India will account for 80 percent of the growth in greenhouse gases over the next 20 years, developing countries say the West grew rich on cheap energy that polluted the atmosphere.

The developing world now wants aid for cleaner energy production, but the question is how much?

What do you think? How real is the global warming threat?