On May 1, 2025, the Canadian Supreme Court rejected an appeal by the Government of Ontario in a youth-driven climate case in which seven youth plaintiffs brought a constitutional challenge to the Government's lack of action with respect to climate change. As reported by JURIST, the plainfiffs argued that Ontario's use of Section 16 of the 2018 Cap and Trade Cancellation Act to modify the 2016 Climate Change Mitigation and Low-Carbon Economy Act resulted in a watering down of the requirments in the Climate Change Act and effectively subjects youth and indigenous communities to dangerous and arbitrary levels of CO2 emissions. They seek an order declaring that their rights under sections 7 and 15 of the Canadian Charter of Right and Freedoms have been violated. The Ontario Court of Appeal concluded in October 2024 that government climate change targets must comply with the Charter and affirmed that the government's actions are putting people at risk. The refusal by the Supreme Court to take the appeal confirms the judgment of the Court of Appeal means the case will return to the Ontario Superior Court of Justice, which had previously dismissed the plaintiffs' application.