Air quality warnings issued in Alberta, Sask. as wildfire smoke blankets provinces air-quality-warnings-issued-in-alberta-sask-as-wildfire-smoke-blankets-provinces #Air #quality #warnings #issued #Alberta #Sask #wildfire #smoke #blankets #provinces, Air quality warnings were issued throughout parts of Alberta and Saskatchewan over the Labour Day long weekend as thick smoke hung over the provinces. Environment Canada said a cold front caused wildfire […]