The Federal Reserve Bank of San Francisco hosted in late 2019 the Fed's first conference focused on climate change. There, researchers presented on topics ranging from the effects of climate change on the global workforce to the interaction between pollution and interest rate. But the day kicked off with one series of questions: why this and why now?   In this episode, with the help of Reuters reporter Ann Saphir, we examine central banking's climate risks and the Fed's engagement with those issues.