Commentary I have problems with the foundational assumptions for the recent ruling on the Greenhouse Gas Pollution Pricing Act from the Supreme Court of Canada. Chief Justice Richard Wagner said this in his decision: “There is also a broad consensus among expert international bodies that carbon pricing is a critical measure for the reduction of GHG emissions. This matter is critical to our response to an existential threat to human life in Canada and around the world. As a result, it passes the threshold test and warrants consideration as a possible matter of national concern.” It’s simply not true that climate change poses an existential threat to life in Canada. It’s more likely that warming would improve our living conditions overall. That’s not to say that other parts of the world are not at risk from rising temperatures, certainly from rising sea levels, and warmer temperatures could also impact ecosystems. …