@CNN: More than 90 percent of world’s children breathe toxic air, according to a World Health Organization report https://t.co/zahmb2qlKr https://t.co/fE3xqdgfy7

@CNN: More than 90 percent of world’s children breathe toxic air, according to a World Health Organization report https://t.co/zahmb2qlKr https://t.co/fE3xqdgfy7