Melting ice roads cut off Indigenous communities in Canada’s far north as unseasonably warm weather on Friday also saw its largest city, Toronto, break a winter heat record. Communities in Ontario and neighboring Manitoba provinces declared a state of emergency as the warm spell made the network of ice roads — which across Canada spans more than 8,000 kilometers (5,000 miles) between dispersed populations — unpassable. Many remote communities in Canada’s north depend on ice […]