Interesting op-ed piece in the New York Times today. It focuses on the other greenhouse gases, the ones besides CO2. The authors claim that short term reductions in global warming may be easiest to achieve by focusing on these other gases, while building long-term reductions in CO2 at the same time.
We can slow warming quickly by cutting emissions of four other climate pollutants: black carbon, a component of soot; methane, the main component of natural gas; lower-level ozone, a main ingredient of urban smog; and hydrofluorocarbons, or HFCs, which are used as coolants. They account for as much as 40 percent of current warming.