Drinkable Rivers: How the river became my teacher

As a young child in a densely populated suburb of Rotterdam, Li An Phoa is amazed by the wilderness around the house - the moss between the pavement tiles and the herons in the ditches. As a twenty-something, she ventures into the real wilderness for the first time. On a canoe trip through the Canadian Subarctic, she discovers that she can drink from the river. But when she returns three years later, she can no longer do so: the river is polluted, the ecosystem disturbed. That experience st...