Air Pollution and Health
More than 90% of the world breathes polluted air, and air pollution is the fifth leading risk factor for death worldwide, killing some five million people each year.

Why It Matters
- 6.8b breathe unhealthy air.
- 3b+ people rely on polluting biomass fuels (wood, charcoal, dung) for cooking and heating their homes.
- 50% of pneumonia deaths among children under 5 years of age are caused by household air pollution.
- 1.3m people in India and Indonesia alone died because of air pollution in 2017.