Has global warming stopped?

'The global temperature of 2007 is statistically the same as 2006 and every year since"

'The fact is that the global temperature of 2007 is statistically the same as 2006 and every year since 2001'. Plus read Mark Lynas's response

Global warming stopped? Surely not. What heresy is this? Haven’t we been told that the science of global warming is settled beyond doubt and that all that’s left to the so-called sceptics is the odd errant glacier that refuses to melt?

Aren’t we told that if we don’t act now rising temperatures will render most of the surface of the Earth uninhabitable within our lifetimes? But as we digest these apocalyptic comments, read the recent IPCC’s Synthesis report that says climate change could become irreversible. Witness the drama at Bali as news emerges that something is not quite right in the global warming camp.

With only few days remaining in 2007, the indications are the global temperature for this year is the same as that for 2006 – there has been no warming over the 12 months.

But is this just a blip in the ever upward trend you may ask? No.

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.

In principle the greenhouse effect is simple. Gases like carbon dioxide present in the atmosphere absorb outgoing infrared radiation from the earth’s surface causing some heat to be retained.

Consequently an increase in the atmospheric concentration of greenhouse gases from human activities such as burning fossil fuels leads to an enhanced greenhouse effect. Thus the world warms, the climate changes and we are in trouble.

The evidence for this hypothesis is the well established physics of the greenhouse effect itself and the correlation of increasing global carbon dioxide concentration with rising global temperature. Carbon dioxide is clearly increasing in the Earth’s atmosphere. It’s a straight line upward. It is currently about 390 parts per million. Pre-industrial levels were about 285 ppm. Since 1960 when accurate annual measurements became more reliable it has increased steadily from about 315 ppm. If the greenhouse effect is working as we think then the Earth’s temperature will rise as the carbon dioxide levels increase.

But here it starts getting messy and, perhaps, a little inconvenient for some. Looking at the global temperatures as used by the US National Oceanic and Atmospheric Administration, the UK’s Met Office and the IPCC (and indeed Al Gore) it’s apparent that there has been a sharp rise since about 1980.

The period 1980-98 was one of rapid warming – a temperature increase of about 0.5 degrees C (CO2 rose from 340ppm to 370ppm). But since then the global temperature has been flat (whilst the CO2 has relentlessly risen from 370ppm to 380ppm). This means that the global temperature today is about 0.3 deg less than it would have been had the rapid increase continued.

For the past decade the world has not warmed. Global warming has stopped. It’s not a viewpoint or a sceptic’s inaccuracy. It’s an observational fact. Clearly the world of the past 30 years is warmer than the previous decades and there is abundant evidence (in the northern hemisphere at least) that the world is responding to those elevated temperatures. But the evidence shows that global warming as such has ceased.

The explanation for the standstill has been attributed to aerosols in the atmosphere produced as a by-product of greenhouse gas emission and volcanic activity. They would have the effect of reflecting some of the incidental sunlight into space thereby reducing the greenhouse effect. Such an explanation was proposed to account for the global cooling observed between 1940 and 1978.

But things cannot be that simple. The fact that the global temperature has remained unchanged for a decade requires that the quantity of reflecting aerosols dumped put in our atmosphere must be increasing year on year at precisely the exact rate needed to offset the accumulating carbon dioxide that wants to drive the temperature higher. This precise balance seems highly unlikely. Other explanations have been proposed such as the ocean cooling effect of the Interdecadal Pacific Oscillation or the Atlantic Multidecadal Oscillation.

But they are also difficult to adjust so that they exactly compensate for the increasing upward temperature drag of rising CO2. So we are led to the conclusion that either the hypothesis of carbon dioxide induced global warming holds but its effects are being modified in what seems to be an improbable though not impossible way, or, and this really is heresy according to some, the working hypothesis does not stand the test of data.

It was a pity that the delegates at Bali didn’t discuss this or that the recent IPCC Synthesis report did not look in more detail at this recent warming standstill. Had it not occurred, or if the flatlining of temperature had occurred just five years earlier we would have no talk of global warming and perhaps, as happened in the 1970’s, we would fear a new Ice Age! Scientists and politicians talk of future projected temperature increases. But if the world has stopped warming what use these projections then?

Some media commentators say that the science of global warming is now beyond doubt and those who advocate alternative approaches or indeed modifications to the carbon dioxide greenhouse warming effect had lost the scientific argument. Not so.

Certainly the working hypothesis of CO2 induced global warming is a good one that stands on good physical principles but let us not pretend our understanding extends too far or that the working hypothesis is a sufficient explanation for what is going on.

I have heard it said, by scientists, journalists and politicians, that the time for argument is over and that further scientific debate only causes delay in action. But the wish to know exactly what is going on is independent of politics and scientists must never bend their desire for knowledge to any political cause, however noble.

The science is fascinating, the ramifications profound, but we are fools if we think we have a sufficient understanding of such a complicated system as the Earth’s atmosphere’s interaction with sunlight to decide. We know far less than many think we do or would like you to think we do. We must explain why global warming has stopped.

David Whitehosue was BBC Science Correspondent 1988–1998, Science Editor BBC News Online 1998–2006 and the 2004 European Internet Journalist of the Year. He has a doctorate in astrophysics and is the author of The Sun: A Biography (John Wiley, 2005).] His website is www.davidwhitehouse.com

HASSAN AMMAR/AP PHOTO
Show Hide image

Between twin barbarisms

After six years of war, Syria’s moderate rebels are broken and marginalised. And now, as Bashar al-Assad has wished for so long, al-Qaeda extremists are leading the insurgency.

On 9 February, a grey-bearded and balding Syrian rebel commander wearing military dress appeared in an internet video calling for greater unity among the forces opposing President Bashar al-Assad. This was unremarkable. Syria’s rebel groups frequently issue unity statements, merge units and create umbrella groups – many of which, like the fruit of the medlar tree, turn rotten before they turn ripe.

Yet the message from Hashem al-Sheikh – a native of Aleppo imprisoned by Assad in 2005 for his jihadi beliefs and then released along with other Islamist prisoners in 2011 in an attempt to poison the nascent uprising against the regime – was hugely important in the context of the Syrian Civil War: it signalled the potential subsuming of the entire Syrian opposition to radical and reactionary forces, and to al-Qaeda in particular.

In the video, Hashem al-Sheikh announ­ced the creation of a powerful, extremist-dominated entity known as Hayat Tahrir al-Sham (HTS), or the “Committee for the Liberation of the Levant”.

One of the main groups that joined the new committee is Nur al-Din al-Zenki, a corrupt and brutal Islamist movement that was once backed by the CIA as a “vetted organisation”, though this designation was later revoked. In July last year, five months before Aleppo fell to Assad’s forces, the group’s members were filmed beheading Abdullah Tayseer in the eastern part of the city. Tayseer was a 13-year-old boy whom they accused of fighting for the regime.

Far more significant was the folding into HTS of Jabhat Fateh al-Sham (JFS), which until July was known as Jabhat al-Nusrah – and which represented al-Qaeda on the ground in Syria. JFS, comprised mainly of local fighters, had earned a degree of popular support among civilians because of its fighters’ valour and lack of corruption. The rebranding was an attempt by its leaders to recast it as a broader part of the overall uprising, and to capitalise on ordinary Syrians’ hatred of Islamic State (IS), which is widely seen as having usurped the revolution and diverted its aims.

Consequently, al-Qaeda has pursued an audacious line of messaging that seeks to portray the group in Syria as a responsible actor that follows a “middle path” between acquiescence and extremism. The corollary is clear: that it is both authentic and organic. “JFS is not a fringe group that exists on another planet,” wrote a spokesman, Mos­tafa Mahamed, shortly after it rebranded in 2016. “It is deeply embedded in society, made up from the average Syrian people.”

The creation of Hayat Tahrir al-Sham is a further coup for al-Qaeda in its quest for legitimacy within the Syrian opposition. Because Hashem al-Sheikh, the HTS leader, has never been part of JFS, the group can more credibly intertwine itself within the much wider movement. Indeed, Sheikh declared that HTS is not an umbrella organisation, and neither does it represent the continuation of any particular fighting force. It is a merger that dissolves the individual identities of its constituents, bringing them together in a wholly new entity.

Even so, its messages bear all the hallmarks of al-Qaeda. Sheikh’s first speech as leader was deeply sectarian; he declared Shias “the enemy”, cursed Alawites (the heterodox sect to which Assad belongs) and called for hostilities against the “forces of Zoroastrianism” (used in this context as a pejorative reference to Iran).

The elevation of Hashem al-Sheikh also throws a spotlight on the tensions within Ahrar al-Sham, one of the most powerful and well-armed of all the anti-Assad forces. Despite holding various extremist beliefs, the Islamist group has been influential and prominent within the Syrian uprising. Sheikh was one of the founding members of Ahrar al-Sham and, until his defection last month, one of its leaders.

Ahrar al-Sham is now split into two factions – those who favour greater pragmatism (and, along with this, compromise and moderation) and those who are doggedly doctrinaire. It faces other challenges, too, because HTS has adopted an aggressive posture towards rival anti-Assad forces. In recent weeks its fighters, targeting the Free Syrian Army, Ahrar al-Sham and other units, have sought to consolidate control over the entire province of Idlib in north-western Syria, near the border with Turkey. This is the most significant rebel redoubt in the country after the fall of Aleppo.

“Al-Qaeda is eating us,” an official with the US-backed moderate rebel group Fastaqim told the Washington Post last month, explaining why his fighters had joined an alliance with Ahrar al-Sham despite its more hardline views.

The consolidation among the rebel groups, and the drift towards greater extremism, stem directly from what happened in Aleppo late last year before it was finally reclaimed by Assad’s army. When regime fighters, aided by Iranian-backed militias and Russian troops, managed to encircle and besiege eastern Aleppo, Assad enacted an already tried and tested policy: submit or starve. For months, hundreds of thousands of civilians trapped inside the city survived on dwindling supplies while Syrian and Russian warplanes dropped barrel bombs and bunker busters capable of ­destroying underground medical facilities.

So great was the suffering that, when the regime made its final push on Aleppo just before Christmas, rebel pockets crumbled much faster than anyone had predicted. After an evacuation deal was agreed, tens of thousands of civilians moved into the rebel-held Idlib, to the west. A minority went to regime-controlled parts of Aleppo.

The shifting dynamics of the war present a significant challenge for Syria’s beleaguered and dwindling revolutionaries, who find themselves caught between the twin barbarisms of Assad and the jihadist groups. Although there remains an alphabet soup of groups operating in Syria, few have any significance. In Idlib, the only groups realistically capable of commanding authority or administering rebel-held territory were JFS and Ahrar al-Sham. With the latter in free fall, it seems that the spoils will go exclusively to Hayat Tahrir al-Sham.

This marks a dangerous pivot in the Syrian Revolution. The pragmatic aspects of the opposition are being overtaken by a bullish and avowedly jihadist movement that is not only dogmatic in its approach to scripture, but also not prepared to abide minorities. The ascendency of HTS heralds an end for the opposition’s backers in both the West and the Gulf, who will shy away from supporting an alliance that so brazenly incorporates a former al-Qaeda affiliate. Already, the US, Saudi Arabia and Turkey have suspended support to moderate rebel groups, fearing that supplies will fall into the hands of extremists.

“There is now a strong likelihood that [this] will be remembered as the moment when Western and Arab states turned away from the Syrian opposition, sealing its  fate,” Aron Lund, a fellow at the Centre for Syrian Studies at St Andrews University, noted recently.

 

***

 

The extremist hijacking of the rebellion is precisely what Assad wanted. For years he tried to portray everyone opposed to his regime as a terrorist, arguing that they were inspired first by the Muslim Brotherhood and then by al-Qaeda and IS.

It was a deft move. When the protests began in 2011 as a principally secular and student-led movement, Syria’s Ba’athists faced an existential threat. As had occurred elsewhere in the Arab world, the international community was on the side of the revolutionaries. The Assad regime had to find a way to make the opposition unacceptable to the West. Over a long period and after much suffering, it has succeeded in achieving precisely that, by peeling progressives away from the opposition and fomenting the jihadist threat within.

Radical groups are now consuming those that have otherwise evaded the regime, a number that grows smaller by the day.

A report published last month by Amnesty International describes the methodical extermination campaign waged by Assad against peaceful activists detained in his most disreputable prison – Sednaya, where Sheikh was once held. The report documents how up to 13,000 people were hanged in the prison between 2011 and 2015, usually after severe beatings and torture.

“The victims are overwhelmingly civilians who are thought to oppose the government,” the Amnesty report states. “Since 2011, thousands of people have been executed in mass hangings, carried out at night and in the utmost secrecy.”

The executions are believed to happen in groups of 50 at a time. It is thought that a further ten prisoners die every day under torture, or from the squalid conditions ­inside Sednaya, including malnutrition, overcrowding, poor sanitation and lack of medical care.

Assad’s destruction of the civilian component from the opposition has, perversely, helped his standing in the international community. He is now able to cast himself as the last guarantor of Syria’s delicate and secular social palimpsest, a particular contrast to the millenarian mania of Islamic State and al-Qaeda.

The full extent of his rehabilitation became apparent last month when the Foreign Secretary, Boris Johnson, signalled a potential change in UK government policy while giving evidence to the House of Lords select committee on international relations.

“It is our view that Bashar al-Assad should go. It’s been our long-standing position. But we are open-minded about how that happens and the timescale on which that happens,” Johnson said. This included an acceptance that Assad should be allowed to run for the presidency again. The statement marked a dramatic shift in British policy towards the conflict since it first began. “I have to be realistic about how the landscape has changed,” Johnson said.

Donald Trump has spoken repeatedly of his fears about the terrorist threat emanating from Syria: he wants to confront extremists operating in the ravaged country. Against this backdrop, it is easy for Assad to present himself as a beleaguered, secular president fighting a jihadist insurgency.

Since winning back control of Aleppo in December, Assad has seemed more emboldened than at any other point in this long conflict. The regime is concentrating its efforts nearer to Damascus. A five-week bombardment allowed the regime to retake Wadi Barada, a highly strategic area about ten miles north-east of Damascus that is one of the capital’s sources of water, in late January. Assad is now focusing on Ghouta, another district near the capital, where the regime’s forces are alleged to be using chlorine bombs as chemical weapons against the besieged population.

Given the recent military gains, can ­Assad achieve his stated aim of restoring government control over the whole of Syria? That remains an altogether more challenging and ambitious task, not least in the east, where IS remains strong.

Though it is tempting to believe reports that IS is in terminal decline, this belies the facts. The group is under pressure in Iraq and is losing territory in Mosul, its main stronghold in the neighbouring country. It is likely that Iraqi forces will eventually recover all their territory, driving IS back into its Syrian redoubts.

But the social and political dynamics in Iraq are different from those in Syria, where IS is not only more entrenched but is facing a weaker, less cohesive adversary. Assad is already stretched and fighting on multiple fronts. He cannot afford to divert significant forces to fighting Islamic State, nor is he inclined to do so. Indeed, he is now almost entirely dependent on external support. Not only did he require Russian assistance in Aleppo, but there was much broader support from Shia militias such as Hezbollah, as well as elite Iranian forces. Whereas Russia’s involvement has diminished since Aleppo was recaptured, the Iranians are now far more heavily invested – emotionally and religiously – in the conflict. Within days of Aleppo falling, one of Iran’s most senior army commanders, General Qasem Soleimani, was pictured in the city.

By contrast, Assad is yet to visit. His chief priority remains the capture and control of what has been termed “useful Syria”, the spine of economically important cities and towns running along the western frontier from Deraa, near the border with Jordan, all the way up to Aleppo.

While Kurdish troops have made gains against Islamic State in Syria, they lack the firepower and resources needed to overcome the group decisively. Given the Turkish government’s immutable opposition to empowering Kurdish forces, this is unlikely to change. And IS has demonstrated its resilience and capacity to adapt.

It is sometimes easiest to think of the various moving parts of the Syrian conflict as the air inside a balloon: squeeze one part, and you merely move the air elsewhere. Although Russian and Syrian forces were successful in retaking the historic city of Palmyra last year, once they turned their attention towards Aleppo IS returned. Its destruction of Palmyra’s cultural heritage was more intense during the second occupation than when it previously controlled the city. (Syrian soldiers and their allies recaptured Palmyra a second time early this month.) Yet IS has also made smaller gains in other areas, such as the eastern province of Deir az-Zour, where its fighters pushed through regime lines and encircled a military airbase.

These are ominous lessons for military planners in Damascus, suggesting that the residual influence of groups such as Islamic State and Hayat Tahrir al-Sham will continue to resonate for years to come.

The fall of Aleppo may well have marked a turning point in the Syrian conflict – but only towards a more draconian and jihadi-led armed opposition.

Shiraz Maher is an NS contributing writer, a member of the department of war studies at King’s College London and the author of “Salafi-Jihadism: the History of an Idea” (C Hurst & Co)

Shiraz Maher is a contributing writer for the New Statesman and a senior research fellow at King’s College London’s International Centre for the Study of Radicalisation.

This article first appeared in the 09 March 2017 issue of the New Statesman, The return of al-Qaeda