For two years, the world has been battling COVID-19 with masks, vaccines, and lockdowns. There have been impressive results and serious missteps, but countries have failed to channel their shared exp…

The global economy will confront serious challenges in the months and years ahead, and looming in the background is a mountain of debt that makes markets nervous—and that thus increases the system's vulnerability to destabilizing shocks. Yet the baseline scenario seems to be one of continuity, with no obvious convulsions on the horizon.

At the COP27 summit, leaders will discuss how to deal with the many consequences of climate change. These four cases show how the climate crisis is altering the threat of zoonotic diseases.