October 3, 2020 — From early on in this pandemic, a common reaction has been “at least, maybe now we will get serious about addressing climate change.” One can see the logic. The terrible toll taken by Covid-19 should remind us of the importance of three things: the need for science, the role for public policy, and the usefulness of international cooperation. With these three revelations firmly in mind, we can see that we also need them to respond to the problem of climate change.