Read here. Everyone knows soot (black carbon) is responsible for a lot of warming and health problems. Everyone knows the soot problem is much easier to solve than the CO2 emissions problem. So, why doesn't the UN and leading countries solve this major carbon problem first? Because, it has nothing whatsoever to do with the climate or saving people's lives. It's all about money, more money, even more money, huge piles of money and power - a lot of both.