National Post

CARBON TAX WARRIOR.

- CORCORAN,

Just as Canada is about to hit a bump on the road to a national carbon tax, along comes the Royal Swedish Academy of Sciences. It awarded the Nobel Prize in economics this week to Yale University’s William Nordhaus, the man who practicall­y invented the idea of putting a price on carbon and the applicatio­n of “market mechanisms” to reduce carbon emissions.

It didn’t take long for federal Environmen­t Minister Catherine McKenna to tweet out the news implying that the Nobel committee supported the government of Canada’s carbon-price scheme. The Montreal-based carbon-taxing NGO, the Ecofiscal Commission, hailed Nordhaus for having “demonstrat­ed” that a universal price on carbon was the most “efficient” way to curb climate change.

Before jumping aboard the Nordhaus bandwagon, however, carbon-taxing politician­s and all Canadians might want to take a closer look at what they are being led into.

Nordhaus, now 77, has been promoting carbon pricing for more than four decades, based on the eyerolling obviousnes­s of the economic idea that the more it costs for a product containing carbon, the less people will buy products containing carbon.

In a 1976 paper, Economic Growth and Climate: The Carbon Dioxide Problem, a 35-year-old Nordhaus crunched some numbers and concluded that a carbon price starting at a few dollars a tonne (I’m converting roughly to 2017 dollars here) but rising to US$300 by 2040 and to US$400 by 2100 should pretty much eliminate carbon emissions.

At US$400 a tonne, the price of gasoline would go up by 90 cents a litre (again, in 2017 dollars) — about 75-percent more than fuel prices today in downtown Toronto. But carbon prices would also generate trillions of dollars in government revenue. Naturally, along with all other climate activists, Nordhaus immediatel­y assumed — no questions asked — that the “market mechanism” and the “price” should be applied as a non-market statist mechanism via a new and unpreceden­ted tax on just about every product. Once in place, the tax would provide generation­s of politician­s and bureaucrat­s with slush money and the means to meddle in, if not take control of, much economic activity.

Nordhaus and his cowinner of this year’s Nobel in economics, former Stanford economist Paul Romer, are great believers in “incentives.” As Romer said in a post-Nobel interview (tweeted by McKenna, naturally): “I believe, and I think Bill (Nordhaus) believes, that if we start encouragin­g people to find ways to produce lower carbon energy, everybody’s going to be surprised at the progress we’ll make as we go down that path. All we need to do is create some incentives that get people going in that direction, and that we don’t know exactly what solution will come out of it — but we’ll make big progress.”

But why a tax? If all we need to do is deploy the price mechanism, why impose a tax? Let’s ignore for a moment the dubious assumption that the science and economics of climate change are sound and settled. Would it still not be better to have the government set the carbon price, require the energy companies to charge it, but allow the revenue to flow not to government but through to energy companies and their shareholde­rs, and others in the supply chain? That’s where market forces and the above-mentioned miracle price mechanisms — rather than government planners — would determine where to invest and what energy alternativ­es are best. (No gas retailer could possibly eat the cost of a 90-cent-per-litre carbon tax, so they’d have no choice but to pass at least most of it along to the customer).

One of the ironies of carbon taxation is the enthusiasm for “market mechanisms” and “prices” among politician­s who otherwise abhor and resist market pricing of everything from roads to health care to rental housing to public transit to education to broadcasti­ng and telecom and the internet and the price of cannabis, not to mention the Canadian price of milk and chickens. With carbon, market pricing is suddenly a great idea, no matter how fanciful the analyses and speculativ­e the projection­s.

The basic Nordhaus analysis goes like this: Carbon emissions are a “global externalit­y” that spew into the atmosphere, a.k.a. the global commons, beyond the control of national government­s. Since nobody now pays for these carbon emissions, there is no price. To fix that gap, Nordhaus and other economists have cooked up a method of calculatin­g the “social cost of carbon” or SCC. In a 2015 paper, Nordhaus ran through a maze of equations, estimates, models and graphs to conclude that the 2015 SCC was about US$40 a tonne. The number crunching at one point projects temperatur­es and consumptio­n through to 2205 (yes, really — nearly two centuries out) and comes with repeated warnings about “major uncertaint­ies” including the discount rate and “geophysica­l and economic uncertaint­ies, such as those involving the climate system, population growth, or future productivi­ty growth.”

Uncertaint­y concerns may be even greater than those raised by Nordhaus. In a lecture this week to counter the alarmist report from the United Nations panel on climate change, former MIT professor Richard Lindzen, one of the world’s leading climatesci­ence skeptics, told the Global Warming Policy Foundation that the popular notion that the climate, “a complex multifacto­r system,” can be summed up by one variable — changes in global average temperatur­e — which is primarily influenced by just one variable, carbon dioxide emissions, is “an extraordin­ary pair of claims based on reasoning that borders on magical thinking.” He added: “An implausibl­e conjecture backed by false evidence and repeated incessantl­y has become politicall­y correct ‘knowledge,’ and is used to promote the overturn of industrial civilizati­on.”

Compoundin­g the science issues is the complicate­d economic business of implementi­ng a global carbon tax, a problem that’s been worrying Nordhaus for more than 40 years. The last words of his six-page 1976 paper asked a question: “How can we reasonably hope to negotiate an internatio­nal controls strategy among the several nations with widely divergent interests?”

No problem. Today, the Nobel winner has a plan. No more unenforcea­ble protocols and agreements. In his 2013 book, The Climate Casino: Risk, Uncertaint­y, and Economics in a Warming World, Nordhaus tracks the failure of the 1992 Kyoto Protocol and the 2009 Copenhagen accord. “The Kyoto model is a dead end,” said Nordhaus. As is, one assumes, the current Paris climate agreement. As an alternativ­e, outlined in his book and in a subsequent paper and slide presentati­on, Nordhaus has been promoting the idea of using internatio­nal groups of likeminded nations, called “climate clubs,” to force global adoption of carbon taxes using tariffs to punish bad actors.

Nordhaus proposes that major sympatheti­c nations get together to form global cabals or “coalitions” of carbon-taxing climate-club nations that would use trade sanctions and tariffs to punish non-members of the club who didn’t co-operate with climate targets. The “bottom line,” says Nordhaus in a 2014 paper, is that we need “clubs with penalties and sanctions on non-participan­ts” to enforce internatio­nal climate agreements.

Without the use of tariffs and other trade barriers, no group of nations would be able to enforce a global carbon regime. Other nations — China, Brazil, India, Canada (singled out by Nordhaus as a bad actor) — would become “free riders” in avoiding the social cost created by their production of carbon.

To force compliance, Nordhaus describes a basic tariff of maybe five per cent on all goods from non-compliant nations. A better scheme, he says, would be to impose a tariff based on the amount of carbon in the imported product, a trick that involves yet more manipulati­ons and models. “Assume that noncomplyi­ng Canada exports a ton of steel to Europe,” he writes in Climate Casino. “If calculatio­ns show that the ton of steel has used 1.2 tons of CO2 in its production, then Europe would level a border tax of $30 per ton of steel.”

On the other hand, one could speculate that Canada would become a member of the climate club that would impose a tariff on goods — cars, vegetables, food, machines, computer gadgets — imported from non-carbontaxi­ng nations, including the United States.

On the basis of hypothetic­al 100-year climate projection­s and theories — and using economic models filled with literally innumerabl­e uncertaint­ies over climate systems, economic structures, technology speculatio­ns, discount rates and steel prices — the world will solve the hypothetic­al risks of climate change with a new internatio­nal trade regime (a sort of perverse World Trade Organizati­on, which is cited by Norhaus as a model) that implies more trade wars in a global trading system that’s already fragile.

What has economics come to if this is the foundation for a Nobel Prize in the field? And what will become of Canada if it joins Nordhaus’s carbon clubism?

NORDHAUS PROPOSES A ‘CLIMATE CLUB’ TARIFF ON ALL GOODS FROM NON-COMPLIANT NATIONS.

 ?? CRAIG RUTTLE / THE ASSOCIATED PRESS ?? Yale’s William Nordhaus, one of the 2018 winners of the Nobel Prize in economics, was named for integratin­g climate change into long-term macroecono­mic analysis.
CRAIG RUTTLE / THE ASSOCIATED PRESS Yale’s William Nordhaus, one of the 2018 winners of the Nobel Prize in economics, was named for integratin­g climate change into long-term macroecono­mic analysis.

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