A teenager from Blainville is asking international groups to investigate the environmental impact of Stablex, a US-owned hazardous waste site in his community. 14-year-old William Guindon argues that Canada and Quebec have failed to apply their own environmental protection laws, so now he’s taking his fight global by filing requests to the United Nations and to an environmental watchdog under the Canada-US-Mexico agreement (CUSMA). CBC journalist Sarah Jesmer looks at the controversy around the site, and what power these international bodies have to respond, particularly in the midst of trade tensions with the US.