Is cutting carbon dioxide more important than reducing methane?

At a recent event in Doha, prof. Myles Allen argued that we should not focus on reducing short-lived climate pollutants, such as methane and soot, at the expense of lowering CO2 emissions. Allen argued that long-lived and short-lived warming agents represent different types of threats, and comparing them simplistically may cause companies and countries to follow counterproductive climate strategies. You can read more about this debate in Duncan Clark’s Guardian blog post.