More than 90% of the world breathes polluted air, making air pollution a global health challenge in need of urgent attention. On this episode of Public Health Power Hour, speakers discussed air pollution and respiratory health, looking at its growing health burden and its effect on children's health. Speakers include Vital Strategies’ Sumi Mehta, Senior Epidemiologist, Environmental Health Division; Qurota Ayuni, Center for Indonesian Medical Students' Activities; Alejandro Daly, UNICEF Youth Representative, Colombia; and Leith Greenslade, Every Breath Counts Coalition. Watch the recording here.