Earlier this month, Canada’s Eco-Fiscal Commission, an economic think tank devoted to climate change policy, released a report on the eve of the annual climate meeting in Spain (COP25). It found that the price tag to honour Canada’s commitment to the 2015 Paris Climate Agreement means everyone will soon need to pay what amounts to a $210 a tonne carbon tax. Few Canadians will appreciate the onerous costs this actually represents – let me explain.