Many Canadians are unhappy about the carbon tax. Proponents argue it’s the cheapest way to reduce greenhouse gas (GHG) emissions, which is true, but the problem for the government is that even as the tax hits the upper limit of what people are willing to pay, emissions haven’t fallen nearly enough to meet the federal target of at least 40 per cent below 2005 levels by 2030. Indeed, since the temporary 2020 COVID-era drop, national GHG emissions have been rising, in part due to rapid population growth.

The carbon tax, however, is only part of the federal GHG plan. In a new study published by the Fraser Institute, I present a detailed discussion of the Trudeau government’s proposed Emission Reduction Plan (ERP), including its economic impacts and the likely GHG reduction effects. The bottom line is that the package as a whole is so harmful to the economy it’s unlikely to be implemented, and it still wouldn’t reach the GHG goal even if it were.

Simply put, the government has failed to provide a detailed economic assessment of its ERP, offering instead only a superficial and flawed rationale that overstates the benefits and waives away the costs. My study presents a comprehensive analysis of the proposed policy package and uses a peer-reviewed macroeconomic model to estimate its economic and environmental effects.

The ERP can be broken down into three components: the carbon tax, the Clean Fuels Regulation (CFR) and the regulatory measures. The latter category includes a long list including the electric vehicle mandate, carbon capture system tax credits, restrictions on fertilizer use in agriculture, methane reduction targets and an overall emissions cap in the oil and gas industry, new emission limits for the electricity sector, new building and motor vehicle energy efficiency mandates and many other such instruments. The regulatory measures tend to have high upfront costs and limited short-term effects so they carry relatively high marginal costs of emission reductions.

The cheapest part of the package is the carbon tax. I estimate it will get 2030 emissions down by about 18 per cent compared to where they otherwise would be, returning them approximately to 2020 levels. The CFR brings them down a further 6 per cent relative to their base case levels and the regulatory measures bring them down another 2.5 per cent, for a cumulative reduction of 26.5 per cent below the base case 2030 level, which is just under 60 per cent of the way to the government’s target.

However, the costs of the various components are not the same.

The carbon tax reduces emissions at an initial average cost of about $290 per tonne, falling to just under $230 per tonne by 2030. This is on par with the federal government’s estimate of the social costs of GHG emissions, which rise from about $250 to $290 per tonne over the present decade. While I argue that these social cost estimates are exaggerated, even if we take them at face value, they imply that while the carbon tax policy passes a cost-benefit test the rest of the ERP does not because the per-tonne abatement costs are much higher. The CFR roughly doubles the cost per tonne of GHG reductions; adding in the regulatory measures approximately triples them.

The economic impacts are easiest to understand by translating these costs into per-worker terms. I estimate that the annual cost per worker of the carbon-pricing system net of rebates, accounting for indirect effects such as higher consumer costs and lower real wages, works out to $1,302 as of 2030. Adding in the government’s Clean Fuels Regulations more than doubles that to $3,550 and adding in the other regulatory measures increases it further to $6,700.

The policy package also reduces total employment. The carbon tax results in an estimated 57,000 fewer jobs as of 2030, the CFR increases job losses to 94,000 and the regulatory measures increases losses to 164,000 jobs. Claims by the federal government that the ERP presents new opportunities for jobs and employment in Canada are unsupported by proper analysis.

The regional impacts vary. While the energy-producing provinces (especially Alberta, Saskatchewan and New Brunswick) fare poorly, Ontario ends up bearing the largest relative costs. Ontario is a large energy user, and the CFR and other regulatory measures have strongly negative impacts on Ontario’s manufacturing base and consumer wellbeing.

Canada’s stagnant income and output levels are matters of serious policy concern. The Trudeau government has signalled it wants to fix this, but its climate plan will make the situation worse. Unfortunately, rather than seeking a proper mandate for the ERP by giving the public an honest account of the costs, the government has instead offered vague and unsupported claims that the decarbonization agenda will benefit the economy. This is untrue. And as the real costs become more and more apparent, I think it unlikely Canadians will tolerate the plan’s continued implementation.