Mr. Speaker, a carbon tax, a $7-billion slush fund, is not going to affect the climate, it is not going to affect the carbon dioxide levels. Carbon dioxide makes up only 4% of earth's atmosphere. Of that 4%, 3.4% is attributed to anthropological activity. In any case, it is the never-ending goose with the golden egg for carbon tax because no matter how much we increase carbon taxes and cut CO2 emissions, it is never going to have an impact on CO2 levels in the atmosphere. Carbon dioxide is not a toxic gas. Plants breathe it in and exhale oxygen, so the time to stop talking about carbon dioxide being a poisonous gas has long since ended.
In the House of Commons on June 14th, 2018. See this statement in context.