@CNN: More than 95% of the world’s population is breathing unhealthy air and the poorest nations are the hardest hit, a new report has found https://t.co/KT0KIwvU0b https://t.co/DjTmDhd4JF

@CNN: More than 95% of the world’s population is breathing unhealthy air and the poorest nations are the hardest hit, a new report has found https://t.co/KT0KIwvU0b https://t.co/DjTmDhd4JF