Has global warming really stopped?

Mark Lynas responds to a controversial article on which argued global warming has s

On 19 December the New Statesman website published an article which, judging by the 633 comments (and counting) received so far, must go down in history as possibly the most controversial ever. Not surprising really – it covered one of the most talked-about issues of our time: climate change. Penned by science writer David Whitehouse, it was guaranteed to get a big response: the article claimed that global warming has ‘stopped’.

As the New Statesman’s environmental correspondent, I have since been deluged with queries asking if this represents a change of heart by the magazine, which has to date published many editorials steadfastly supporting urgent action to reduce carbon emissions. Why bother doing that if global warming has ‘stopped’, and therefore might have little or nothing to do with greenhouse gas emissions, which are clearly rising?

I’ll deal with this editorial question later. First let’s ask whether Whitehouse is wholly or partially correct in his analysis. To quote:

"The fact is that the global temperature of 2007 is statistically the same as 2006 as well as every year since 2001. Global warming has, temporarily or permanently, ceased. Temperatures across the world are not increasing as they should according to the fundamental theory behind global warming – the greenhouse effect. Something else is happening and it is vital that we find out what or else we may spend hundreds of billions of pounds needlessly."

I’ll be blunt. Whitehouse got it wrong – completely wrong. The article is based on a very elementary error: a confusion between year-on-year variability and the long-term average. Although CO2 levels in the atmosphere are increasing each year, no-one ever argued that temperatures would do likewise. Why? Because the planet’s atmosphere is a chaotic system, which expresses a great deal of interannual variability due to the interplay of many complex and interconnected variables. Some years are warmer and cooler than others. 1998, for example, was a very warm year because an El Nino event in the Pacific released a lot of heat from the ocean. 2001, by contrast, was somewhat cooler, though still a long way above the long-term average. 1992 was particularly cool, because of the eruption of a large volcano in the Philippines called Mount Pinatubo.

‘Climate’ is defined by averaging out all this variability over a longer term period. So you won’t, by definition, see climate change from one year to the next - or even necessarily from one decade to the next. But look at the change in the average over the long term, and the trend is undeniable: the planet is getting hotter.

Look at the graph below, showing global temperatures over the last 25 years. These are NASA figures, using a global-mean temperature dataset known as GISSTEMP. (Other datasets are available, for example from the UK Met Office. These fluctuate slightly due to varying assumptions and methodology, but show nearly identical trends.) Now imagine you were setting out to write Whitehouse’s article at some point in the past. You could plausibly have written that global warming had ‘stopped’ between 1983 and 1985, between 1990 and 1995, and, if you take the anomalously warm 1998 as the base year, between 1998 and 2004. Note, however, the general direction of the red line over this quarter-century period. Average it out and the trend is clear: up.

Note also the blue lines, scattered like matchsticks across the graph. These, helpfully added by the scientists at (from where this graph is copied), partly in response to the Whitehouse article, show 8-year trend lines – what the temperature trend is for every 8-year period covered in the graph.

You’ll notice that some of the lines, particularly in the earlier part of the period, point downwards. These are the periods when global warming ‘stopped’ for a whole 8 years (on average), in the flawed Whitehouse definition – although, as astute readers will have quickly spotted, the crucial thing is what year you start with. Start with a relatively warm year, and the average of the succeeding eight might trend downwards. In scientific parlance, this is called ‘cherry picking’, and explains how Whitehouse can assert that "since [1998] the global temperature has been flat" – although he is even wrong on this point of fact, because as the graph above shows, 2005 was warmer.

Note also how none of the 8-year trend lines point downwards in the last decade or so. This illustrates clearly how, far from having ‘stopped’, global warming has actually accelerated in more recent times. Hence the announcement by the World Meteorological Organisation on 13 December, as the Bali climate change meeting was underway, that the decade of 1998-2007 was the “warmest on record”. Whitehouse, and his fellow contrarians, are going to have to do a lot better than this if they want to disprove (or even dispute) the accepted theory of greenhouse warming.

The New Statesman’s position on climate change

Every qualified scientific body in the world, from the American Association for the Advancement of Science to the Royal Society, agrees unequivocally that global warming is both a reality, and caused by man-made greenhouse gas emissions. But this doesn’t make them right, of course. Science, in the best Popperian definition, is only tentatively correct, until someone comes along who can disprove the prevailing theory. This leads to a frequent source of confusion, one which is repeated in the Whitehouse article – that because we don’t know everything, therefore we know nothing, and therefore we should do nothing. Using that logic we would close down every hospital in the land. Yes, every scientific fact is falsifiable – but that doesn’t make it wrong. On the contrary, the fact that it can be challenged (and hasn’t been successfully) is what makes it right.

Bearing all this in mind, what should a magazine like the New Statesman do in its coverage of the climate change issue? Newspapers and magazines have a difficult job of trying, often with limited time and information, to sort out truth from fiction on a daily basis, and communicating this to the public – quite an awesome responsibility when you think about it. Sometimes even a viewpoint which is highly likely to be wrong gets published anyway, because it sparks a lively debate and is therefore interesting. A publication that kept to a monotonous party line on all of the day’s most controversial issues would be very boring indeed.

However, readers of my column will know that I give contrarians, or sceptics, or deniers (call them what you will) short shrift, and as a close follower of the scientific debate on this subject I can state without doubt that there is no dispute whatsoever within the expert community as to the reality or causes of manmade global warming. But even then, just because all the experts agree doesn’t make them right – it just makes them extremely unlikely to be wrong. That in turn means that if someone begs to disagree, they need to have some very strong grounds for doing so – not misreading a basic graph or advancing silly conspiracy theories about IPCC scientists receiving paycheques from the New World Order, as some of Whitehouse’s respondents do.

So, a mistaken article reached a flawed conclusion. Intentionally or not, readers were misled, and the good name of the New Statesman has been used all over the internet by climate contrarians seeking to support their entrenched positions. This is regrettable. Good journalism should never exclude legitimate voices from a debate of public interest, but it also needs to distinguish between carefully-checked fact and distorted misrepresentations in complex and divisive areas like this. The magazine’s editorial policy is unchanged: we want to see aggressive action to reduce carbon emissions, and support global calls for planetary temperatures to be stabilised at under two degrees above pre-industrial levels.

Yes, scientific uncertainties remain in every area of the debate. But consider how high the stakes are here. If the 99% of experts who support the mainstream position are right, then we have to take urgent action to reduce emissions or face some pretty catastrophic consequences. If the 99% are wrong, and the 1% right, we will be making some unnecessary efforts to shift away from fossil fuels, which in any case have lots of other drawbacks and will soon run out. I’d hate to offend anyone here, but that’s what I’d call a no-brainer.

Mark Lynas has is an environmental activist and a climate change specialist. His books on the subject include High Tide: News from a warming world and Six Degree: Our future on a hotter planet.
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The Silk Roads rise again

The ancient network across central Asia shaped trade and culture for centuries. Now, as its economy slows, China is building a new bridge from east to west.

On 6 September 2013, the Chinese president, Xi Jinping, left the G20 summit of major economies in St Petersburg and began a tour of central Asia. His first stop was Astana, in Kazakhstan. On arrival, he told his counterpart, Nursultan Nazar­bayev, that both countries had benefited from good friendship – they were “as close as lips and teeth” – and that he looked forward to discussing “major international and regional issues of mutual interest”.

What these issues were, and their geo­political significance, became clear the following day in a speech at Nazarbayev University. The time had arrived, Xi announced, for China and the nations of central Asia to reflect on their long, shared past and to formulate plans to intensify economic co-operation, facilitate trade and remove barriers. It was time, he said, to build a “New Silk Road”.

With that statement of intent – soon backed by action – from the leader of the world’s second-biggest economy, it was evident that the axis on which the globe spins was slowly turning back to where it lay for millennia. Scholars, artists and merchants once flocked to cities such as Bukhara and Samarkand (in modern Uzbekistan), to cosmopolitan centres such as Baghdad and Basra (modern Iraq), Tabriz and Isfahan (Iran), or to Merv, a city in what is now Turkmenistan and which in the 10th century Arab and Persian geographers described as “the mother of the world”.

This network of countries, stretching from the Black Sea and eastern Mediterranean to the mountain ranges of the Himalaya, Tian Shan and Pamir, is rich is commodities that help power and feed the world: oil and gas, rare-earth minerals, wheat and corn. Yet it remains a region we pay scant attention to and know little about. If we are to make sense of the past, the present and the future, we should be looking less to the West and the East and much more to the bridge that links the two. The Silk Roads once dominated global trade and cultural exchange. Now they are rising again.


The term “Silk Roads”, or Seidenstraßen, was coined in 1877 by the German geographer Ferdinand von Richthofen. It denoted the mesh of cities, oases and routes criss-crossing Asia, linking the Pacific with the Mediterranean, and the Red Sea, Persian Gulf and Indian Ocean with Russia, Scandinavia and Europe. Along these networks the world’s great religions rose and spread. Competition was intense, requiring architectural statements to support claims of divine connection – as with the now destroyed statues of the Buddha at Bamiyan in Afghanistan, or the 40 Buddhist monasteries that ringed Kabul, one of which had pavements made of onyx, marble walls, golden doors and floors of solid silver, “while in the hallway there was a golden idol as beautiful as the moon, seated on a magnificent bejewelled throne”, as one observer wrote.

Joining the evangelists on these routes across Asia were military leaders, merchants and learned men. Modern Chinese words derived from Persian and Arabic, such as bosi, meaning a precious object (literally “from Persia”), are evidence of the booming markets and wealth in the Muslim world in the early Middle Ages, as vast tax revenues flowed towards Baghdad and the great cities of Mesopotamia and central Asia. Scholars were drawn by systems of patronage that gathered the best minds to work on pure and applied mathematics, science, optics and medicine, while great craftsmen found an insatiable demand for their wares. A place such as Rayy, not far from modern Tehran, was so glorious as to be considered “the bridegroom of the earth”. Cities, strung like pearls across the spine of Asia, flourished long after the discovery of the Americas: the moment usually presumed to have marked the true start of the ascent of the West.

In fact, the expeditions that crossed the Atlantic from the end of the 15th century, coupled with the rounding of the Cape of Good Hope by the Portuguese explorer Vasco da Gama at roughly the same time, served to strengthen rather than weaken the Silk Roads. Precious metals taken from the Aztecs and Incas were moved through Europe and then on to trading stations such as Manila, in the Philippines, to pay for luxuries of all kinds – from ceramics and textiles to pearls and curios, such as the capes that were brought back from the East for the Medici dukes in Florence.

Europe’s golden age was mirrored, initially, by a flourishing across the Silk Roads, as China, India, Persia and central Asia reaped the benefits of trade. Descendants of the great central Asian warlord Tamberlane became empire-builders, expanding south from the Ferghana Valley (at the crossroads of modern-day Uzbekistan, Tajikistan and Kyrgyzstan) through Afghanistan and into India. Monuments were constructed by the new central Asian “Mughal” overlords in the  classic central Asian style, such as Humayun’s  tomb in Delhi and the Taj Mahal at Agra.

Europe’s efforts to take control of the Silk Roads networks led to a change in attitudes to those in the East, who went from being trading partners to people who could be divided, exploited and dominated. The likes of the East India Company established and expanded their trading positions jealously and ruthlessly, making obscene fortunes for their officers. The interests of those who ran and owned the business were everything; those who got in the way were of no consequence. In the early 1770s famine ravaged Bengal, killing millions after the East India Company sharply raised land taxes and cleared fields to make way for the cultivation of opium poppies. When Robert Clive, a leading figure in the East India Company, was called to answer questions in parliament, he spoke like the chief executive of a distressed bank: his priorities had been to protect the interests of shareholders, not those of the local population; surely he deserved no criticism for doing his job.

That the European traders had thought only of enriching themselves as the local population starved to death made a strong impression on those living in colonies elsewhere, above all in North America. Leaflets distributed in Pennsylvania described the East India Company as an institution “well versed in Tyranny, Plunder, Oppression, and Bloodshed”, a symbol of all that was wrong with Britain itself. If Bengalis could starve to death, why not those living in the colonies? It was not hard for the Founding Fathers to conclude that it was time to go it alone. Events on one side of the globe had an effect on the other.

Anxieties about control of the Silk Road region helped shape the geopolitics of the 19th and early 20th centuries. Keeping India secure and protecting the strong trading position that had been built up in China became central strands of British foreign policy. In the hundred years after 1815 and the Battle of Waterloo, it was Russian ambitions in Asia that London feared most. The tsar’s frontiers rolled ever further southwards and eastwards, swallowing up territory that threatened the Persian Gulf and advancing deep into central Asia. This set nerves on edge in London and Delhi. Suddenly Russia was at the gates of India, with the protective buffer of independent khanates reduced to what Lord Curzon called “the thinness of a wafer”.

The answer was to divert Russian attention to its western flank, where relations with a strident and ambitious Germany were sacrificed. Any improvement in relations with the kaiser were out of the question, noted the foreign secretary, Sir Edward Grey, in 1910, if they came at the expense of Russia. The consequences of a hostile Russia, another senior British official noted, were far worse than an unfriendly Germany. As Europe drifted to war in 1914, it was the fear of what would happen in the East that haunted British diplomats. If we fail to stand by Russia, Sir George Clerk cabled from Constantinople, as the tsar’s troops began to mobilise on the border with Austria-Hungary, “our very existence as an Empire will be at stake”.

It was not just India that was at risk; so was trade with China, four-fifths of which was carried on British ships at the turn of the 20th century. The importance of Persia, too, as a central point along the Silk Roads networks was magnified by the discovery of oil in 1908 by a British firm, the Anglo-Persian Oil Company, which eventually became BP. Historical attention usually focuses on the war in Europe, but the British authorities at the time kept close tabs on events thousands of miles away. According to the cabinet secretary, gaining control of Persia’s oil, and the suspected abundant supply in neighbouring Mesopotamia, was nothing less than “a first-class war aim”.

Thus began a century of astonishing short-sightedness as countries of Europe, and then the US and the USSR, pursued economic interests and geopolitical ideals at the expense of local populations. Reactions to heavy-handed interference became increasingly aggressive and violent, with anti-western rhetoric a consistent theme: from the furious rejection of the West by Ayatollah Khomeini and his successors to the anger of the former Afghan president Hamid Karzai, who now talks of the western intervention in Afghanistan as “a betrayal”, and on to the grotesque violence of Islamic State and al-Qaeda. The defiance of Vladimir Putin, too, whether regarding the deployment of troops in Ukraine, the annexation of Crimea or in the recent military intervention in Syria; likewise, the point-blank refusal of China as well as many of the states in central Asia to engage in dialogue about human rights stands as a rejection of the “enlightened” western way of doing things. Across the Silk Roads, from east to west, north to south, the message is the same: the West should disengage from ill-thought-through attempts to spread views that it treats as objective truths; it should forget its mantra of liberation and democratisation – and mind its own business.


While governments in North America and Europe attempt to respond to events as they happen, from the Arab spring to the refugee crises, China has been thinking about the long game. In a series of important public statements, backed by action on the ground, the Chinese leadership has begun to build friendships, cement alliances and secure resources that will be crucial for its growth, which has slowed in recent years from 10 per cent to less than 7 per cent. This marks an important change of attitudes, following a century characterised by upheaval, introspection and long periods of self-imposed isolation. As Xi Jingping signalled in Kazakhstan two years ago, China is becoming intensely keen on emphasising the historical, economic and cultural links with its neighbours, evoking a common heritage in central as well as south-east Asia.

Speaking in Astana, Xi Jinping noted that the peoples who live in the region that connects east and west have co-operated, coexisted and flourished despite “differences in race, belief and cultural background” for 2,000 years. It is a “foreign policy priority”, he said, “for China to develop friendly co-operative relations with the central Asian countries”.

To do that, China is committing formidable resources to infrastructure investments in a web that resembles the Silk Roads of old and is known in China as “One Road, One Belt”. With Chinese energy demands alone forecast to triple by 2030, signing large contracts to buy oil from Russian producers has been a priority, as has been winning the rights to develop wells in Afghanistan and in the Afghan-Tajik basin, believed to contain 1.8 billion barrels of crude. Chinese miners have been pursuing concessions for copper, bauxite and rare-earth mines across the heart of Asia. Networks of pipelines, railways and deep-water ports – as at Bandar Abbas in Pakistan – designed to transport these resources have been built or are under construction.

To secure deals, the Chinese have used a soft touch, committing to share profits and fund educational projects. Companies such as ZTE and Huawei have set up telecommunication networks, bringing 3G to the steppes and superfast broadband to the cities of the Silk Roads – at prices that western corporations decry as being commercially uncompetitive, but which win goodwill in the region.

As minerals, fossil fuels and other commodities flow in one direction, so hard currency flows in the other. This brings challenges in a region of autocratic, often repressive regimes where power and assets are in the hands of the few. In Turkmenistan gleaming new tourist facilities at Avaza, on the eastern coast of the Caspian Sea, built at a reported cost of $2bn, stand almost empty, while new airports, presidential palaces and winter sports arenas that are part of a construction programme worth ten times as much bring little benefit to the 60 per cent of the population that is unemployed.

Yet something profound is happening. China’s own centre of gravity has begun to swing westwards, to Xinjiang, a large autonomous region in the north-west that borders Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, India and Pakistan. Economic growth there has recently outstripped the rest of China, and tourism to cities such as Zhangye, in Gansu Province, has risen elevenfold in the past four years alone.

One reason for this is the huge investment into railway lines fanning out along the Silk Roads to connect to the Indian subcontinent, the Caspian, the heart of Russia, and on to a rail freight terminal at Duisburg in Germany. A recent report in the New York Times noted that although only 2,500 containers were shipped by rail from China to Europe in 2012, 7.5 million are expected to travel along that route by 2020. The speed and cost of getting Chinese-made goods to market has convinced companies such as Foxconn, an electronics manufacturer that is a crucial part of Apple’s supply chain, and Hewlett-Packard to move from the Pacific coast of China to Chengdu and Chongqing, which are closer to China’s western border and to the Silk Roads.

It was no accident that George Osborne visited Xinjiang on his recent trade mission, nor that he was congratulated by Chinese state media for his “diplomatic etiquette” for not “raising the human rights issue”. As Jim O’Neill, the former Goldman Sachs economist who coined the term “Brics” and who now advises George Osborne, told the Financial Times: “We shouldn’t go round the world saying, ‘Oi, you should do exactly what we think.’ Because it might not be right and, guess what, if you do that you won’t be very successful in your commercial objectives.”


To many people, the Silk Roads countries, especially those of central Asia, are perceived as a sort of “Wild East”, full of sinister characters. In Turkmenistan, a giant golden statue of the former president Saparmurat Niyazov revolves to face the direction of the sun. In Kazakhstan, President Nazarbayev was re-elected in 2011 after winning nearly 96 per cent of the vote. The family of his counterpart in Azerbaijan, Ilham Aliyev, was privately compared by US diplomats with “the Corleones of Godfather fame” in leaked diplomatic cables.

And yet, there are good reasons why we must engage with these nations. For one thing, the energy resources of countries across central Asia are large enough to affect global oil and gas prices (it is estimated that there is more oil under the Caspian Sea than off the North American continental shelf). Then there are the rare-earth minerals that are essential for components in satellites, iPhones, laptops and cancer screening machines. Even the wheat fields that run across southern Russia, Ukraine and the steppes from the Black Sea as far as Mongolia have an importance far beyond the region: during the crisis in Ukraine in 2014, the global price of wheat shot up.

Luxury hotel groups have opened up all over the region, from Erbil in Iraqi Kurdistan to Baku in Azerbaijan and Urumqi in China, where Hilton Hotels & Resorts has just opened its first property. As the ink was drying on a putative agreement between Tehran and Washington on nuclear issues (energy and weapons), McDonald’s advertised for potential franchisees in Iran. British private schools, too, have set up satellite operations in the Gulf, China and Kazakhstan, where there is a choice of two campuses of Haileybury College alone. Tony Blair has been offering advice and public words of support there (in return for a reported fee of £8m a year).

In this new era, the West’s influence is waning, as is its credibility. The disastrous military interventions in Afghanistan and Iraq, coupled with the confused and ineffective response to the civil war in Syria, are bad enough. Barriers being erected – in some cases literally – at the frontiers of Europe provide a powerful indication of the passing of an age, one in which foreigners and outsiders are less welcome, in which tolerance and compassion are replaced by fear, anxiety and seclusion.

Yet, to the East, the world is slowly opening up again, as it did in the glory days of the old Silk Roads.

Peter Frankopan’s book “The Silk Roads: a New History of the World”, is published by Bloomsbury

This article first appeared in the 22 October 2015 issue of the New Statesman, The 18th-century Prime Minister