The changing climates of global health.

### Summary box > The decisions we make now will determine the course of the next 30 years and beyond: Emissions must fall by half by 2030 and reach net-zero emissions no later than 2050 to reach the 1.5C goal…If we fail to meet these goals, the disruption to economies, societies and people caused by COVID-19 will pale in comparison to what the climate crisis holds in store. (Antonio Guterres, United Nations Secretary-General)1 The historical trajectories of three crises have converged in the 2020s: the COVID-19 pandemic, rising inequality and the climate crisis. The political, social and institutional arrangements that have collectively constituted 'global health,' and the potential obstacles and possibilities of the COVID-19 …