Only a third of the world’s rivers longer than 1,000 kilometres remain free-flowing. In North America, 70 per cent of those are in Canada. Meet some of the people who want to keep it that way

In his new book, Original Highways: Travelling the Great Rivers of Canada, Roy MacGregor examines the historical legacy and future of Canada's greatest rivers

University of Waterloo researchers want to see Canada develop a national flood risk strategy