In what some have called a game-changing decision, an Ontario court has ruled that the provincial government's weakened climate target could violate Canada's Charter of Rights and Freedoms. Here's a closer look at the ruling and what could come next.

Ontario's top court has ordered a new hearing for a youth-led constitutional challenge of the provincial government's emissions target, saying the case raised important issues that should be considered afresh.

A group of young people argue Ontario's weakened emission target is a violation of their Charter rights. On Thursday, the Appeal Court of Ontario declined to rule on that question, but said lower courts shouldn't have dismissed the case,