“Around the world, businesses, governments and experts agree that carbon pricing is the cheapest and most efficient way to cut carbon pollution,” recently tweeted Catherine McKenna, Canada’s environment and climate change minister. If what she says is true, it means all other anti-carbon strategies — including regulations and subsidies — are unnecessarily expensive and inefficient.

Yet just a few months earlier, when McKenna announced $100 million in green subsidies to Ontario households and businesses, she said that the spending “pays for itself by saving money, reducing carbon pollution and making our homes and businesses more comfortable and affordable.”

Has her position changed or does she still believe Ottawa’s subsidy programs and corporate welfare remain an efficient use of tax dollars that will somehow pay for itself?

The fastest increases in prosperity and cleanliness in human history were supported by private industry, not corporate welfare and green subsidies