On the one hand, UN Secretary-General António Guterres believes COVID has fractured trust between mainly rich and poor countries, especially on vaccines, as the pandemic "demonstrated our enormous fragility." On the other hand, it generated more trust in science, especially on climate — practically the only area, Guterres says, where the US and China can find some common ground these days.

Watch this episode of GZERO World with Ian Bremmer: UN Sec-Gen: Without trust, catastrophe awaits