Guest Post by James Handley
Will you sell your vote for $25? Presidential candidates John McCain and Hillary Clinton are betting you will. They’re campaigning for a “holiday” on federal gasoline taxes for the summer months.
Of the three presidential contenders, only Barack Obama has demurred. Obama said last week:
[T]he federal gas tax is about 5 percent of your gas bill. If it lasts for three months, you’re going to save about $25 or $30, or a half a tank of gas.
Obama insists that the only permanent solution to rising gasoline and diesel fuel prices is to reduce consumption and increase use of alternative fuels.
Haven’t we been down this road before? Yes, a dozen years ago. The New York Times excoriated the same “gas tax holiday” in May 1996:
Fill ‘er up, America, this is the Memorial Day holiday and the start of the “summer driving season.” We are a road-running, gas-guzzling people and Bob Dole, Newt Gingrich and Bill Clinton all say our Federal tax should be lowered 4.3 cents a gallon. But the tax relief, if it ever comes, will be trivial — and will have a negative impact on public policy. It is, in short, something of a political fraud.
Low prices and higher demand by consumers, many of them all too willing to pay any price to drive at and over higher state speed limits, will only increase American dependency on foreign oil. If people are worried about energy, not to mention the environment and the budget deficit, suspending the 1993 gasoline tax increase (many politicians would make it permanent next year) is exactly the wrong way to go.
Now the specter of catastrophic global warming is snapping into sharp focus like a jack-knifed tractor trailer blocking all lanes as we careen along at 75 mph. Sirens are wailing and lights are flashing thanks in large part to the Nobel-winning work of the Intergovernmental Panel on Climate Change and Dr. James Hansen’s NASA-Goddard Climate team, un-muzzled despite Bush Administration threats.
And yet, U.S. energy policy is still “pedal to the metal” on the global warming accelerator — with McCain and Clinton urging us to “step on it” with a gas tax break. The exact opposite of what economists say is the essential step: pricing carbon emissions.
Yale economics professor William Nordhaus offers this litmus test:
[W]hether someone is serious about tackling… global warming can readily be gauged by… what they say about the carbon price. Suppose you hear a public figure who speaks eloquently of the perils of global warming… propose regulating the fuel efficiency of cars, or requiring high efficiency light bulbs or subsidizing ethanol, or providing research for solar power — but nowhere mentions the need to raise the price of carbon.
You should conclude that the proposal is not really serious and does not recognize the central economic message about how to slow climate change. To a first approximation, raising the price of carbon is a necessary and sufficient step for tackling global warming. The rest is largely fluff.
By declining to dangle the $25 bribe before the electorate, Sen. Obama has avoided the fluff. But he hasn’t yet taken the pro-active step of using prices to put the U.S. economy on a low-carbon diet.
Nordhaus provides the intellectual model, explaining that taxes on “bads” such as pollution and waste make our economy more productive and efficient and should therefore be viewed as the opposite of taxes on “goods” like products, income and employment.
Seven-Up soft drink was advertised in the ‘70s as the “Un-Cola.” Perhaps it’s time to market a carbon tax as the “un-tax.”
Photo: Flickr / pbo31

Why is setting a price (or tax) for emissions more efficient than a cap? Because reducing greenhouse gas emissions is more like a marathon than a sprint. The cost of cutting emissions tends to go up with each additional reduction, while the benefit remains essentially constant. (Every ton of CO2 has the same heat-trapping effect.)
The year-long effort to enact congestion pricing in New York City had a lot going for it:
On close examination, this "finding" turns flimsy. The fly in the ointment is that while all four Scandinavian countries have indeed levied some form of carbon tax since the early 1990s, in each case the tax levels so far have been on the "lite" side, making it difficult to tie changes in emissions to specific tax and revenue policies.
In recent years, New Mexico Democratic Sen. Jeff Bingaman has become the lawmaker most linked to this cause. His version of the safety valve emerged in 2005 in a legislative proposal that created a price cap on carbon. It would guarantee that American companies pay no more than $12 for every ton of carbon dioxide they release into the atmosphere. This rate would go up five percent annually beyond inflation.
Here are excerpts from the Wall Street Journal story, spiced with our commentary.
The article ends months of speculation that Bloomberg, a self-made billionaire who has emphasized a managerial, non-partisan approach to governing, would enter the race as an independent.
While Nader has been roundly criticized and even ridiculed as a spoiler and perennial candidate (Nader was the Green Party candidate for president in 1996 and 2000, and he ran as an independent in 2004), his campaign platform includes unambiguous support for a carbon tax. “Adopt a carbon pollution tax” is Issue #6 on Nader’s campaign issues page, 
According to the same story, climate specialist Ian Bruce of the David Suzuki Foundation stated that "The Government has used the most powerful tool, a carbon tax, to reduce greenhouse gas emissions." As Bruce pointed out, "Green choices will become cheaper."