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This sub-section looks at the role and responsibility of the federal and some provincial governments. It presents the research, analysis and monitoring done by various federal and provincial departments.
Explore this issue through films excerpts, archives or texts
Excerpt (2:17)
Freshwater World
1974, production : Giles Walker
Phosphates from detergents and nitrates from fertilizers...
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Excerpt (3:07)
Tomorrow Is Too Late
1974, production : Bané Jovanovic, Douglas Kiefer, Don Virgo
Federal fisheries officers monitor the Atlantic lobster...
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Excerpt (1:10)
1970, production : Michael McKennirey
North American bison once numbered in the millions but were...
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Freshwater World
Excerpt  (2:17) 1974, production : Giles Walker
The film
Phosphates from detergents and nitrates from fertilizers were disrupting Canadian water systems in the 1970s. Entire lakes were dying - deprived of the oxygen necessary to sustain life. Here the Freshwater Institute deliberately releases contaminants into experimental lakes to study their effects. Canada, which contains one third of the world's fresh water, later imposed restrictions on phosphate levels in detergents.

More info on this film in NFB catalogue »»

What are the processes that can change a clean, balanced freshwater environment into a sick one? This film describes a variety of projects undertaken by scientists at Environment Canada's Freshwater Institute in Winnipeg. They are seeking the answer to this important question, and finding ways to restore and protect our freshwater world. This is a film of discovery: the vulnerability of our freshwater world, the damage we have already done it, and how we can help restore and protect it.
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