The Supreme Court of Canada affirmed the constitutionality of the "Greenhouse Gas Pollution Pricing Act" on 25 March, stating that climate change had implications extending beyond provincial boundaries and constituted a national concern as defined under the clause of "peace, order and good government" outlined in sections 91 and 92 within Canada's Constitution. The Court's ruling affirms the federal government's authority to act in cases of national interest. The ruling came in response to a court challenge brought by the provinces of Alberta, Ontario, and Saskatchewan. At issue was whether the federal government ... (full story)