Hundreds of wildfires are burning across Canada, almost half are classed by officials as ‘out of control’. Their immediate impact is the destruction of homes and businesses, plants and wildlife. But the smoke from those fires is affecting air quality. Maps tracking the spread of the smoke, have shown it covering large parts of Canada, as well as US cities such as Minneapolis and Chicago. We speak to families in Canada and New York who share experiences of the smoke from wildfires in Canada. Plus, mothers from India, Pakistan, and United States discuss the effect of air pollution.