The History of Environment in Canada

Archibald Belaney and his wife, Anahareo

The National Film Board of Canada released a film called Beaver People in 1928. The film features conservationists Archibald Belaney and his wife, Anahareo, and their efforts to protect dwindling beaver populations

Source: The Canadian Encyclopedia: Environmental Movement https://www.thecanadianencyclopedia.ca/en/timeline/environment