Ontario government asks Canada's highest court to hear youth-led climate case

Ontario has asked the Supreme Court to weigh in on a historic youth-led challenge of the province's climate plan, moving the case a step closer to a possible hearing before Canada's top court. 

While the court only hears a fraction of the cases it's asked to review, lawyers for Ontario say this case strikes at an unresolved issue of national concern. 

"This proposed appeal would ask this Court to determine, for the first time, whether and to what extent the Canadian Charter of Rights and Freedoms imposes obligations on Canadian governments to combat climate change," read Ontario's application for leave to appeal.

The case was brought by seven young people who argue Ontario's weakened emissions target violated the Charter. 

They allege the target violated their right to life in part by committing Ontario to dangerously high levels of planet-warming emissions and discriminated against them as youth who will bear the brunt of the impacts. 

While their case was initially dismissed at trial, the young people secured a victory on appeal in October when Ontario's highest court sent the case back to a lower court for a new hearing and left open the possibility the constitutional challenge may prevail. 

Fraser Thomson, a lawyer representing the young people, says Ontario's application "opens the door to a generation-defining hearing before Canada's highest court." 

"The climate crisis isn't going away, and neither are we," Thomson, environmental law charity Ecojustice's climate director, said in a written statement. 

The case dates back to when Premier Doug Ford's then-newly elected Progressive Conservative government repealed the law underpinning Ontario's cap-and-trade system for lowering emissions.

The government scrapped the system in 2018 and replaced the emissions target in that law — 37 per cent below 1990 levels by 2030 — with a new target of 30 per cent below 2005 levels.

The young people suggest the revised target allows for additional annual emissions equivalent to about seven million passenger vehicles. 

They successfully defended attempts by Ontario to have the case tossed out, making it the first to be tried in Canada that considered whether a government's climate plan may violate the Charter. 

In a decision last year, an Ontario Superior Court justice agreed the gap between how much emissions need to be cut globally and what the provincial plan calls for is "large, unexplained and without any apparent scientific basis." 

But the judge disagreed that the province's emissions target amounted to a Charter violation. It wasn't that the province's target increased emissions, but that it allegedly did not do enough to reduce them.