The Saskatchewan government challenge of the federal carbon tax will be heard in the Supreme Court of Canada December 5th. The Government of Saskatchewan previously announced the appeal to the Supreme Court of Canada following the 3-2 split decision delivered by the Saskatchewan Court of Appeal in May. The government argued the tax was unconstitutional, but the Saskatchewan appeal court said it was. The government must have a presentation in to the high court by July 26th, 60 days after giving notice of appeal.