Associated Press: The once black-and-white world of climate negotiations for poorer countries has evolved into many shades of gray at talks this week in Paris.
For years, many in the developing world said richer countries created the global warming problem with their industrial emissions so it is up to them to clean it up -- a sticking point in past climate negotiations.
But there's no way that global warming can be kept below the international goal of 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial...