A carbon tax may not actually do a whole lot for emissions

There's a chicken/egg problem at work.

A carbon tax is most economists' favourite method of dealing with climate change. It is exactly the sort of simple, market-driven intervention that they tend to like: set a price per tonne of carbon emitted which is equal to the value of the damage that tonne does to the climate, and then sit back and what businesses and consumers react. Some may cut their usage; some may switch to low-carbon sources of energy, which suddenly become cheaper comparatively; and some may choose to just pay the extra cost (what happens in that last situation is debatable – some think the money should just count as general taxation, others that it should be put towards climate change prevention and mitigation).

The Washington Post's Brad Plumer suggests that it may not work as well as we would hope, however. He reports on a recent MIT study looking at the likely effect of a $20 a ton carbon tax in the real world – the value proposed by a pair of MIT researchers last month.

Plumer writes:

Sebastian Rausch and John M. Reilly of the MIT Global Change Institute recently put forward a proposal for a $20/ton carbon tax that would rise 4 percent each year, starting in 2013. (The funds would be used to offset taxes elsewhere.) Here’s what their economic model predicts would happen to U.S. greenhouse-gas emissions:

Blue line: MIT reference case with no carbon tax. Black line: EIA reference. Green line: Scenario with MIT carbon tax in place.

With a carbon tax in place, U.S. greenhouse gas emissions do start declining quite a bit (this is the green line). But by 2030, emission levels stall, even though the carbon tax keeps rising and rising each year. The United States wouldn’t get anywhere near the 80 percent cut by 2050 that the White House has envisioned.

One explanation here is that MIT’s proposed carbon tax just isn’t high enough. But Muro favors another possibility–that a carbon tax alone isn’t enough to drive deep reductions. The private sector tends to under-invest in energy R&D and key bits of infrastructure such as transmission lines. Without further policies, it’s unlikely that we’ll see a sweeping transformation of our energy system to give people alternatives to coal plants and gasoline-powered cars.

This echoes an argument I've heard several times from those on the more technical side of climate change prevention. For all that the economists and politicians like to talk about creating the conditions in which the private sector will be incentivised to help tackle climate change, those who are more keenly aware of the massive costs involved tend to be rather more pessimistic.

They point out that the carbon tax model provides a cash injection to providers of low-carbon energy – but only after the tax is already instituted. As a result, there's another weak link in the chain, which is the ability of those providers to secure loans to build the capacity required. That's possible for massive companies looking to get into a new area; and it's possible for smaller companies, provided they get enough certainty from the government to be able to convince bankers.

But the fear is that larger companies, already strongly embedded in the conventional energy infrastructure, have little incentive to devote money, which could be used to lower the cost of polluting fuels, to instead build new capacity; and smaller companies won't be left with enough time between when the government finally confirms a carbon tax, and when their new generation is actually needed.

At the same time, though, there is growing evidence that some companies really are going above and beyond the call of duty. Some of it may be greenwashing, and some may be token expenditure, but if there really is any sizeable investment in low-carbon infrastructure, then it makes a carbon tax that much more effective.

Carbon taxes can only lower emissions if they raise the price of polluting relative to an alternative. If that alternative isn't available, then they risk being simply another source of revenue for the state.

Wind turbines being prepared. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Getty
Show Hide image

The struggles of Huma Abedin

On the behind-the-scenes story of Hillary Clinton’s closest aide.

In a dreary campaign, it was a moment that shone: Hillary Clinton, on the road to the caucus in Iowa, stopping at a Mexican fast-food restaurant to eat and somehow passing unrecognised. Americans of all political persuasions gleefully speculated over what her order – a chicken burrito bowl with guacamole – revealed about her frame of mind, while supporters gloated that the grainy security-camera footage seemed to show Clinton with her wallet out, paying for her own lunch. Here was not the former first lady, senator and secretary of state, known to people all over the world. This was someone’s unassuming grandmother, getting some food with her colleagues.

It might be unheard of for Clinton to go unrecognised but, for the woman next to her at the till, blending into the background is part of the job. Huma Abedin, often referred to as Clinton’s “shadow” by the US media, is now the vice-chair of her presidential campaign. She was Clinton’s deputy chief of staff at the state department and has been a personal aide since the late 1990s.

Abedin first met Clinton in 1996 when she was 19 and an intern at the White House, assigned to the first lady’s office. She was born in Michigan in 1976 to an Indian father and a Pakistani mother. When Abedin was two, they moved from the US to Saudi Arabia. She returned when she was 18 to study at George Washington University in Washington, DC. Her father was an Islamic scholar who specialised in interfaith reconciliation – he died when she was 17 – and her mother is a professor of sociology.

While the role of “political body woman” may once have been a kind of modern maid, there to provide a close physical presence and to juggle the luggage and logistics, this is no longer the case. During almost 20 years at Clinton’s side, Abedin has advised her boss on everything from how to set up a fax machine – “Just pick up the phone and hang it up. And leave it hung up” – to policy on the Middle East. When thousands of Clinton’s emails were made public (because she had used a private, rather than a government, server for official communication), we glimpsed just how close they are. In an email from 2009, Clinton tells her aide: “Just knock on the door to the bedroom if it’s closed.”

Abedin shares something else with Clinton, outside of their professional ties. They are both political wives who have weathered their husbands’ scandals. In what felt like a Lewinsky affair for the digital age, in 2011, Abedin’s congressman husband, Anthony Weiner, resigned from office after it emerged that he had shared pictures of his genitals with strangers on social media. A second similar scandal then destroyed his attempt to be elected mayor of New York in 2013. In an ironic twist, it was Bill Clinton who officiated at Abedin’s and Weiner’s wedding in 2010. At the time, Hillary is reported to have said: “I have one daughter. But if I had a second daughter, it would [be] Huma.” Like her boss, Abedin stood by her husband and now Weiner is a house husband, caring for their four-year-old son, Jordan, while his wife is on the road.

Ellie Foreman-Peck

A documentary filmed during Weiner’s abortive mayoral campaign has just been released in the US. Weiner shows Abedin at her husband’s side, curtailing his more chaotic tendencies, always flawless with her red lipstick in place. Speaking to the New York Observer in 2007, three years before their marriage, Weiner said of his future wife: “This notion that Senator Clinton is a cool customer – I mean, I don’t dispute it, but the coolest customer in that whole operation is Huma . . . In fact, I think there’s some dispute as to whether Huma’s actually human.” In the film, watching her preternatural calm under extraordinary pressure, you can see what he means.

In recent months, Abedin’s role has changed. She is still to be found at Clinton’s side – as the burrito photo showed – but she is gradually taking a more visible role in the organisation overall, as they pivot away from the primaries to focus on the national race. She meets with potential donors and endorsers on Clinton’s behalf and sets strategy. When a running mate is chosen, you can be sure that Abedin will have had her say on who it is. There’s a grim symmetry to the way politics looks in the US now: on one side, the Republican candidate Donald Trump is calling for a ban on Muslims entering the country; on the other, the presumptive Democratic nominee Hillary Clinton relies ever more on her long-time Muslim-American staffer.

Years before Trump, notable Republicans were trying to make unpleasant capital out of Abedin’s background. In 2012, Tea Party supporters alleged that she was linked to the Muslim Brotherhood and its attempt to gain access “to top Obama officials”. In her rare interviews, Abedin has spoken of how hurtful these baseless statements were to her family – her mother still lives in Saudi Arabia. Later, the senator and former Republican presidential candidate John McCain spoke up for her, saying that Abedin represented “what is best about America”.

Whether senior figures in his party would do the same now remains to be seen.

Caroline Crampton is web editor of the New Statesman.

This article first appeared in the 26 May 2016 issue of the New Statesman, The Brexit odd squad