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Here comes the sun

A giant nuclear fusion reactor could solve the world’s energy problems – but only if it doesn’t melt

For now, it is a hideous sight. In Cadarache, 60 kilometres north of Marseilles, workers have cleared over 40 hectares of wooded land and moved more than two million cubic metres of soil. However, this scar on the Provençal landscape has been earmarked for greatness. It is where a multinational team of scientists is attempting to build earth's second sun.

As projects go, the International Thermonuclear Experimental Reactor (Iter) could hardly be more ambitious. Its aim is to show that we can control nuclear fusion reactions. This is the same process as generates energy in stars and could, in theory, release up to four million times more power than burning fossil fuels. If Iter works, we'll have solved our energy problems.

But ifs do not come much bigger than that. We do not yet know if it is even possible to build the machine. "Fusion is a big bet - it's not a dead cert," says Steven Cowley, director of the Culham Centre for Fusion Energy, the hub of UK fusion research. The stake for that bet is set at €10bn (£9bn), but that figure is double the original estimate for the project and may rise further; Iter's council was recently presented with just the latest in a series of revised budgets and schedules. Whatever it eventually costs, we will not find out whether the gamble has paid off until 2026, the earliest date for the project's completion.

All this uncertainty and delayed gratification, not helped by the price tag, has generated heat of its own. Iter's critics, who include prominent scientists and Greenpeace International, have argued that the money would be better spent on pressing challenges such as finding ways to increase near-term energy production.

However, the fusion scientists are keen to point out that they are being responsible. It is no use surviving the near term only to find we are faced with a huge energy debt, they argue. World consumption is on course almost to double by 2030. Solar energy and nuclear fission might be more immediately available, but both have their limits. Nuclear fusion's main fuel is derived from seawater, and there are no long-term nuclear waste products. Nothing, they say, would fill the energy gap like this.

Bombard with microwaves

That is what Iter's members - Russia, the EU, Japan, China, South Korea, the US and India - are hoping their 23,000-tonne monster will prove. The jaw-dropping size of Iter is necessary because making commercially viable electricity from fusion depends on economies of scale. Previous successes in smaller reactors have managed to break even, producing as much energy as they consume. But the Cadarache reactor should, according to its designers, give out ten times more power than it takes in.

Operating at 150 million degrees Celsius, ten times hotter than the core of the sun, Iter is certainly going to take in a lot of power. Surprisingly, this kind of temperature is not too hard to achieve. The fuel for Iter is two heavy isotopes of hydrogen called deuterium and tritium. Bombard them with microwaves, magnetic fields and other particles, and they will get hot enough to fuse, releasing energy.

The hard bit comes with the maelstrom created inside the reactor. The high temperature creates a "plasma", a gas of charged particles. Plasma is an engineer's worst nightmare. For a start, it cannot be allowed to touch the reactor's walls; if it does, they will melt, and the whole thing will have to be rebuilt.

The plasma can be held away from the walls using immensely strong magnetic fields, but only - so far - for short periods. This is because the plasma tends to slip around in its magnetic cage, forming areas of high density that can burst through. Even if Iter engineers manage to hold it stable for ten minutes at a time, which is as much as they hope to achieve, the plasma will still shoot out neutrons that can destroy the walls.

This is the frontier where Iter succeeds or fails, Cowley believes. "We're pretty sure we can get out ten times the energy we put in," he says. "But if we have to replace the wall every year, that's going to be a very expensive way to produce electricity."

Once all the engineering problems are overcome, the plant will be able to produce only 500 megawatts of power, equivalent to a single coal-fired power station. Members will then have to build their own fusion reactors using the know-how gained at Iter. Payback will come, so the rationale goes, through these states' privileged position in the trillion-dollar, post-fossil-fuel, global energy market.

It's not an argument that worked for Canada, which pulled out of the fusion dream in 2003. The US also wavered, though it has now committed to paying 9 per cent of the cost. The EU is putting in the largest share, taking responsibility for just under half of the project. Thanks to the strange arithmetic of fusion, however, EU taxpayers may end up paying significantly more than half of the money.

Creative accounting

The funding of Iter is a notoriously slippery subject. Roughly 90 per cent of the contributions are due "in kind" - states will contract firms to manufacture equipment for a cost that they do not have to declare to the other states. Even more confusing is that each of Iter's components has been designated as worth a certain number of "Iter accounting units". Members can then choose which components they commission firms in their countries to design and build. This will affect the balance of expenditure; the cost of producing a particular magnet is likely to be far less in China than in Germany, for instance.

Then there is the complexity of the various components. The UK has chosen to build superconducting magnets and the main container vessel for the plasma. These, it turns out, will cost much more to design and build than initial estimates suggested. Cowley maintains this is a good thing: the money will go to UK in­dustries and provide them with engineering challenges that will have their own spin-off benefits, he says.

“We will never really know how much some countries spent," admits Neil Calder, Iter's spokesman. This lack of clarity about the cost may prove to be the project's Achilles heel.

In May, the journal Nature declared it "deeply unfair" to the taxpayers paying for the project and called for "an honest public debate". Science also weighed in, suggesting that fusion's problems could well be intractable. Fusion, said one commentator in the journal, is "the science of wishful thinking".

There is no sign of second thoughts from any of the members, however. According to Sébas­tien Balibar, a director at France's National Centre for Scientific Research, members stand to gain nothing by halting the project. "Now that Iter has been decided and is under construction, it would be better that it produces useful results," he says.

Michael Brooks is a consultant for New Scientist and the author of "13 Things that Don't Make Sense: the Most Intriguing Scientific Mysteries of Our Time" (Profile Books, £12.99)


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Michael Brooks holds a PhD in quantum physics. He writes a weekly science column for the New Statesman, and his most recent book is At the Edge of Uncertainty: 11 Discoveries Taking Science by Surprise.

This article first appeared in the 30 November 2009 issue of the New Statesman, Left Hanging

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Bernie Sanders and the future of the American left

How an old, white guy is bringing class-based politics to the Democratic primary.

One thing is immediately striking: as he addresses primary rallies across America, arms flailing like a giant bird coming in to land, snow-white hair fizzing skywards like Doc Brown’s in Back to the Future, eyes startled behind the robust spectacles he has worn since childhood, Bernie Sanders looks quite unlike any other presidential candidate.

Perhaps the surprise in those eyes is sparked by the size of the crowds Sanders has been attracting. They are enormous, rivalling the numbers who turned out for Barack Obama back in 2008, and unprecedented for a candidate who is not shy of describing himself as a socialist: 28,000 in Portland and LA, 25,000 in Boston and 15,000 in Seattle. Even in Dallas, not a renowned centre of radicalism, 8,000 turned out to “feel the Bern”.

In these days when slick suits and expensive haircuts are increasingly a turn-off for a public weary of smooth politicians they see as delivering only for the wealthy, Sanders’s persona, like that of Jeremy Corbyn, his equally unkempt British counterpart, has proved popular. But it is his message – an angry chronicling of the depredations facing so many Americans and a solid social-democratic programme for putting things right – that is really pulling in the crowds. Sanders, who is 74, and the main challenger to Hillary Clinton for the Democratic nomination, doesn’t just look different. With his confident calls for a “revolution” to break up the banks and impose higher taxes on the rich, he doesn’t sound like any other recent presidential contender, either.


I first met Bernie Sanders in 1996. I was the publisher of his book Outsider in the House, a political autobiography that appeared the following year (and which has just been reissued by Verso with a new foreword, and more than a hint of optimism, as Outsider in the White House). The occasion was a benefit concert during his successful bid to be re-elected to the House of Representatives from the small, rural state of Vermont.

Sanders’s early years are not well documented, least of all by him. He devotes less than three of the 300 pages in Outsider to the first three decades of his life. He doesn’t much care for the “humble roots” narrative beloved of so many politicians, generally millionaires whose ancestors lived in broken-down cabins. But the raw material is certainly there. The son of Polish immigrants, Sanders grew up in a working-class Jewish family in Flatbush, Brooklyn. At home, money was tight: “Every major household purchase . . . would be accompanied by a fight between my parents as to whether we could afford it,” he wrote.

It was an achievement to gain admission to the University of Chicago, and though he described himself as “not a good student”, that was a result of sacrificing coursework to the cause of social activism. He settled permanently in Vermont at the age of 27, having bought an 85-acre farm in the north of the state for $2,500. Four years later he moved to Burlington, the state capital, where he became involved in city politics, at first in the tiny Liberty Union Party and then as an independent. In 1981 he was inaugurated as mayor and commenced a series of tilts at the state’s congressional seat. He finally entered the House of Representatives in 1991 – the first independent candidate to enter Congress in 40 years.

By the time I encountered him, Sanders was seeking to defend his seat for the third time. The concert where we met was taking place in an old art-deco theatre in Brattleboro, perhaps the most hippiefied community in a state where tie-dye remains as ubiquitous as dairy herds. It was headlined by Pete Seeger, who ran through a panoply from his folk songbook to a packed crowd that knew all the words.

Ten years earlier, Mayor Sanders, a long-time admirer of Seeger, had recorded one of his songs, “Where Have All the Flowers Gone”, on a surreal folk/rap album. Now, he waited until Seeger had finished his set before taking the stage and, speaking in the only manner he seems to know – a gruff, shouted staccato – exhorted Vermonters to join him in the fight against Newt Gingrich and Bob Dole to stop the Republicans from taking over the presidency and the Senate. The response was rapturous. Sanders left the stage like a president concluding a State of the Union speech, gladhanding lines of admirers as he made his way out of the hall.

A few weeks later I met him again, this time at his congressional office in Washington, DC. On the wall of his office I spotted a plaque of Eugene Debs, who ran for Congress and the presidency on a socialist ticket, travelling to every part of the country on a train he called the Red Special and picking up 6 per cent of the popular vote in 1912, when he finished fourth, behind Woodrow Wilson, Theodore Roosevelt and William Howard Taft.

Sanders had invited me to lunch and so we headed off through the underground passageway that leads from the office building to the congressional dining room. We were accompanied along the way by one of his assistants who, in true West Wing style, peppered him with questions and made notes on a clipboard as we walked. We had just started our food when John Kasich, then congressman for Ohio and now governor of the state and a contender for the Republican presidential nomination, wandered over for a chat. Despite Kasich’s reputation as a fiscal conservative, it was evident that he and Sanders had a cordial relationship, and indeed, Sanders invited him to join us for lunch.

It was difficult to reconcile these two contrasting snapshots of Sanders: the rousing air punch in Vermont and the bridge-building handshake in DC. But the more one looks into his career, the clearer it becomes that this dual approach is integral to his remarkable political ascent. Sanders plays it quite differently inside and out, but he plays both sides very hard.

“Bernie doesn’t see a contradiction between working within the system and campaigning to change it,” the journalist Matt Taibbi told me, recalling the time when he shadowed Sanders for several weeks in 2005 while researching a piece for Rolling Stone. “I remember one Thursday afternoon I made a snarky comment about members of the House already sneaking off home for a long weekend and how it seemed to me that many of them were pretty lazy. Bernie scolded me, insisting that most of the people in Congress work very conscientiously. He doesn’t believe the system functions for ordinary people, but he’s not cynical about it either.”

This point was reiterated by Heather Gautney, an associate professor of sociology at Fordham University in New York who previously worked as a researcher in Sanders’s Senate office. “Working with Bernie in DC, I realised what a difficult place it was for someone more interested in movement-building than passing legislation,” Gautney said. “But Bernie was known for getting substantial chunks of the Republican vote in Vermont and he used that same skill to connect with some pretty unlikely allies in Congress.”

Sanders’s legislative record is strikingly good. In the decade after the Republicans took over the House of Representatives in 1995 no other lawmaker attached more amendments to bills that were voted on. He achieved this by using his position as an independent to put together coalitions that spanned both of the main parties, and also by sheer hard work. In his Rolling Stone article, Taibbi describes Sanders waiting patiently for hours to table an amendment in the office of the House rules committee, “a tiny, airless closet deep in the labyrinth of the Capitol where some of the very meanest people on Earth spend their days cleaning democracy like a fish”.

Sanders’s method of working across party lines is not without its critics. Especially on the left, there are voices that wonder if the compromises that inevitably accompany playing the system in DC are too large. Many of Sanders’s positions on foreign policy have skewed towards the militarism and careless disregard for human rights that prevail among the Washington establishment. Although notably, and unlike Hillary Clinton, he opposed the initial vote on the Iraq War, Sanders voted for every bill that came before Congress to fund the occupations of Afghanistan and Iraq. He has supported basing the new F-35 fighter plane at Burlington Airport in Vermont, despite widespread concern from residents about the environmental impact. And he did not oppose the Senate resolution that supported Israel’s attack on Gaza in 2014, which left as many as 2,200 Palestinians dead.

Sanders is clearly happier talking about problems inside the US than foreign policy. In his opening statement to last Saturday’s televised debate between the Democratic candidates, he segued awkwardly from condemning the attacks in Paris to excoriating America’s “rigged economy”. Yet on domestic issues, too, some of his stands have given progressives pause for thought: his opposition to the Trans-Pacific Partnership, a 12-country trade agreement championed by Barack Obama, has always been grounded in an argument in favour of saving jobs for American workers, rather than any notion of international solidarity. His slowness in expressing support for the burgeoning Black Lives Matter movement, something which his campaign has latterly striven hard to correct, was less of a surprise to those aware of his consistent support for the police union while mayor of Burlington. And his position on guns (he voted against the Brady Bill, which mandated background checks on buyers of firearms) is the only area in which Clinton outflanks him to the left.

But perhaps the biggest issue for many progressives is Sanders’s decision to run for president through, rather than outside, the Democratic primary. Though he began his political career in the Liberty Union Party and has stood in every election since as an independent, he is, as Howard Dean, the progressives’ challenger in the Democratic primary of 2003/2004, put it, “basically . . . a Democrat . . . [who] votes with the Democrats 98 per cent of the time”.

As Sanders relates in Outsider in the House, faced in 1996 with the choice of backing Ralph Nader, “a personal friend and an exemplary progressive” running as an independent, or Bill Clinton, whose policies on health care, welfare reform, trade, gay marriage and military spending he sharply disagreed with, Sanders decided to “support” Clinton. “Perhaps ‘support’ is too strong a word,” he frets in the book. “I’m planning no press conferences to push his candidacy, and will do no campaigning for him. I will vote for him, and make that public.”

Sanders has called for a vote for the Democratic nominee in every presidential election since Jimmy Carter left office in 1981, and early this month, on ABC’s This Week, he appeared to have completed a long transition, asserting: “I am a Democrat now.”

This failure to build an electoral force outside the Democrats always leads to a dead end, according to Anthony Arnove, a prominent member of the International Socialist Organisation (ISO) who is also a publisher and literary agent representing a range of leftish writers, including Arundhati Roy. “We’ve seen it over and over,” Arnove said: “a left challenge fires up the base and is then defeated in the primaries by a centrist, or, more accurately, right-wing candidate, who goes on to betray everything those people were mobilised around.”

Sanders’s fundraising almost matched Clinton’s over the summer – in the third quarter they raised $26m and $28m, respectively – and in September he became the first candidate to attract more than a million individual donations. (The average donation to his campaign has been $30.) But his dip in the polls after Hillary’s strong performances in the first nationally televised primary debate, and then again at her House select committee hearing on the 2012 attack on the US consulate in Benghazi, Libya, suggests he will struggle to win the nomination. As of early November he trailed Clinton nationally by 25 points.

In Arnove’s view, Sanders “won’t get further than Super Tuesday [at the beginning of March], when he’ll direct his base to vote for Clinton. This is exactly how the Democrats become a graveyard for progressive politics, when what we desperately need are social movements that can remain independent of both establishment parties and push for their own agenda.”


The revolution to which Sanders often refers is a long way from the sort envisaged by Arnove’s ISO. He is pursuing a fairer capitalism, not its overthrow. “He’s not Trotsky,” as Taibbi put it to me. But there are those inside his campaign who think its primary focus should be building a grass-roots organisation capable of transcending the four-yearly coming together of presidential elections, to create a more permanent basis for a broad, progressive movement.

One such advocate is Adolph Reed, a writer and academic who is campaigning for Sanders in South Carolina. Working with local unions and Labor for Bernie Sanders 2016, which has 70,000 signed-up members, Reed sees the potential in using Sanders’s programme, with its emphasis on basic economic demands such as the minimum wage, universal health care and free college tuition, as a way of drawing together various groups campaigning around single issues such as housing and police racism.

For Reed, who is black, class trumps race as the key to building a movement. “In New Orleans everyone talked about Katrina as having a devastating effect on black people in the city, which of course it did. But when you analyse it, class was a much better predictor of who suffered most there,” he told me. The centre of a class-based movement, Reed argues, will have to be provided by the trade unions. “Despite the fashionability of protests without any specific demands or elected leaderships, no movement initiative is going to have staying power without being anchored in the trade unions.”

Recruiting the unions to work alongside Sanders’s campaign in the way Reed envisages isn’t easy. The American Federation of Teachers and the machinists’ union have already thrown in their lot with Hillary Clinton. And Richard Trumka, the president of the AFL-CIO (America’s national federation of trade unions), has warned individual unions against coming out for Sanders. But Reed can point to significant declarations of support, from postal workers and the National Nurses Union. The AFL-CIO chapters in Vermont and, more surprisingly, South Carolina have also backed his run.

“It’s important to keep Bernie in the race for as long as possible, but the ultimate objective is to develop structures that can continue beyond the election,” Reed said. “It’s premature to say what this network will look like, but Bernie’s campaign provides an important boost to putting it in place.”


From Jesse Jackson to Dennis Kuci­nich to Howard Dean, an array of people’s champions has made a splash in the recent history of Democratic presidential primaries. None, however, has been as explicitly critical of capitalism (or so gruff about it) as Bernie Sanders. His no-nonsense, class-based politics are a measure of how the disenchantment with the ideology of a free market that arrived like a train in the 1980s and ran off the rails in 2008 is now finding its way into the mainstream.

Up until now, the critical moments of left advance in America – the Seattle WTO protests, the anti-war movement, Occupy Wall Street, the campaign for gay rights and, today, Black Lives Matter – have occurred outside electoral politics. There are a couple of good reasons for this. The US electoral system, like Britain’s, makes third-party challenges extraordinarily difficult. And inside the Democratic Party these movements would have been crushed by a conservative leadership around the Democratic National Committee, put in place by Bill Clinton.

One result is a paucity of new progressive voices inside the party. At a moment when, as Gramsci once put it, the old order no longer works but the new order has not yet been born, Sanders, with his New Deal politics and firebrand demeanour, seems not so much a successor to the old order as a throwback to a time that pre-dates it, when politicians spoke with conviction and the society they represented was less unfair. As such, he provides a staging post for a new progressive consciousness (according to a poll by Pew at the end of 2011, more Americans aged 18 to 29 would prefer to live under socialism than under capitalism) that is not yet sufficiently coherent to enter mainstream politics in its own right, either through a serious third-party challenge or the transformation of the Democratic Party.

As a middle-class white man, Sanders has been able to get a pass to promote bold positions that someone with a less privileged identity might have found hard to sell. And his age, paradoxically, has proved not to be a disadvantage with a youthful constituency dismayed by the surrender to expedience that disfigures so much of contemporary American politics. His record has been constant over such a long period that, again like Jeremy Corbyn, he can be relied on not to sell out. Though his politics are less radical, his venerability provides a messianic cloak from the same closet as the one worn by Noam Chomsky, another hero for many young progressives.

So it’s not just today’s professionally polished politicians to whom Sanders presents a stark contrast. Recent progressive movements have embraced an identity politics that was much less prevalent when Sanders started out back in 1970s Vermont. In order to forge the sorts of alliances that are necessary to mount a credible challenge on the national political stage, they will likely have to borrow extensively from his unifying class politics. But their leadership will be younger, blacker, less straight and less masculine than Sanders. In that sense, he represents the last hurrah for the old white guy.

Colin Robinson is co-publisher at OR Books (, based in New York

This article first appeared in the 19 November 2015 issue of the New Statesman, The age of terror