The good news out of Paris is that the world is finally getting serious about reducing greenhouse gas emissions. Here are a few reasons to cheer and one quibble.

President Obama’s recently announced Clean Power Plan – potentially a major turning point in the fight to contain greenhouse gas emissions and stop the slide toward an ever-warming Earth – is oddly both a courageous step in the right direction and codification of a process already underway.

You might wonder what the Cold War has to do with climate change, but as I listened last month to historian James Graham Wilson talk about the “triumph of improvisation” that ended the nearly 50-year stare-down between the United States and the U.S.S.R., I was struck by the parallels. The idea of individual leaders escaping the momentum of conventional approaches and adapting on the fly to solve a major global issue deeply resonated with me. It’s exactly what international climate change negotiations desperately need.