In the climate-change sector especially, there’s a view that the processes of the summits known as Conference of the Parties (COP) have had their day or, at the very least, need to be reformed.

Jessica Lussenhop tells the story of the rise and fall of this once-powerful unit of officers, and its leader Sergeant Wayne Jenkins. And she asks: why do good cops go bad?

Here’s what else to know about Good Cop/Bad Cop! The CW has been in flux in the last few years thanks to some big ...