Standing answers

standing will likely not be a significant hurdle in your case because all of your clients face direct injuries/damages as a result of government action/inaction.

Further, Ecojustice, the non-profit organization you work for is a well-known public interest organization in Canada with a history of litigating environment and climate change cases. It would likely not be difficult for such an organization to show that it has a genuine interest in the constitutionality of the government's conduct given the grave consequences of climate change. The grave consequences also make it difficult for the court to dismiss the issue as trivial or frivolous, or not sufficiently serious to warrant the court's attention