As we slide into another year of tough economic times, it’s easy to understand why policymakers are preoccupied with the next few weeks. But they also need to be thinking about the longer term issue of leaving the planet in reasonable shape for future generations. Without serious efforts to reduce greenhouse gases, scientists predict that by the end of this century global temperatures could be 2.5 to 6.0 degrees (celsius) higher than a couple of hundred years ago. That could mean more heatwaves, more droughts, higher sea levels, more violent storms—and so on. When you start to think about the potential impact of, say, droughts on the livelihood of farmers, especially in poorer countries… well, you get the point. While some progress was made in the latest round of United Nations’ climate change negotiations in Durban, South Africa, we saw two major omissions. There was little progress on either carbon pricing or, related, financing for action against climate change. And there was not enough recognition of what economics has to offer to help tackle the problems.