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

Show Hide image

When it comes to responding to Islamic State, there is no middle ground

If Britain has a declared interest in curtailing Islamic State and stabilising Syria, it is neither honourable nor viable to let others intervene on our behalf.

Even before the brutal terrorist attacks in Paris, British foreign policy was approaching a crossroads. Now it is time, in the words of Barack Obama, addressing his fellow leaders at the G20 Summit in Turkey on 16 November, “to step up with the resources that this fight demands”, or stand down.

The jihadist threat metastasises, and international order continues to unravel at an alarming rate. A Russian civilian charter plane is blown out of the sky over the Sinai Peninsula in Egypt, killing 224 people, most of them returning from holiday, and the various offshoots of Islamic State bare their teeth in a succession of brutal attacks in France, Lebanon, Tunisia, Turkey and further afield. Our enemies are emboldened and our friends want to know to what extent we stand with them. The UK can no longer afford to postpone decisions that it has evaded since the Commons vote of August 2013, in which the government was defeated over the question of joining US-led air strikes against President Bashar al-Assad’s regime following a chemical weapons attack on Syrian civilians. MPs’ continued introspection is on the verge of becoming both irresponsible and morally questionable. There is no fence left to sit on.

On Sunday night, two days after the Paris attacks, the French – with US support – launched a series of bombing raids against Islamic State targets in Raqqa. With much more to come, the choice facing this country may not be easier but it is certainly clearer. Britain must determine whether it wants to be a viable and genuine partner in the fight against Islamic State, and in the long-term efforts to bring an end to the assorted evils of the Syrian civil war; or whether we are content to sit on the sidelines and cheer on former team-mates without getting our knees dirty. We can join our two most important allies – France and the United States, at the head of a coalition involving a number of Arab and other European states – in confronting a threat that potentially is as grave to us as it is to France, and certainly more dangerous than it is to the US. Alternatively, we can gamble that others will do the work for us, keep our borders tighter than ever, double down on surveillance (because that will certainly be one of the prices to pay) and hope that the Channel and the security services keep us comparatively safe. There is no fantasy middle ground, where we can shirk our share of the burden on the security front while leading the rest of the world in some sort of diplomatic breakthrough in Syria; or win a reprieve from the jihadists for staying out of Syria (yet hit them in Iraq), through our benevolence in opening the door to tens of thousands of refugees, or by distancing ourselves from the ills of Western foreign policy.

That the international community – or what is left of it – has not got its act together on Syria over the past three years has afforded Britain some space to indulge its scruples. Nonetheless, even before the Paris attacks, the matter was coming to the boil again. A vote on the expansion of air operations against Islamic State has been mooted since the start of this year, but was put on the back burner because of the May general election. The government has treated parliament with caution since its much-discussed defeat in the House in summer 2013. The existing policy – of supporting coalition air strikes against Islamic State in Iraq but not Syria – is itself an outgrowth of an awkward compromise between David Cameron and Ed Miliband, an attempt to reverse some of the damage done by the 2013 vote in parliament.

The Conservatives have waited to see where the ground lies in a Jeremy Corbyn-led Labour Party before attempting to take the issue back before the Commons. Labour pleaded for more time when Corbyn was elected, but there is no sign that the Labour leader is willing to shift in his hostility to any form of intervention. More significantly, he has now ruled out Labour holding a free vote on the matter.

If anything, the coalition of Little Englanders, anti-interventionists and anti-Americans in the House of Commons seems to have dug its trenches deeper. This leaves the Prime Minister with few options. One is to use the Royal Prerogative to announce that an ally has been attacked, and that we will stand with her in joining attacks against Islamic State in Syria. The moment for this has probably already passed, though the prerogative might still be invoked if Isis scores a direct hit against the UK. Yet even then, there would be problems with this line. A striking aspect of the killing of 30 Britons in the June attacks in Sousse, Tunisia, is just how little domestic political impact it seems to have made.

Another option for Cameron is to try to make one final effort to win a parliamentary majority, but this is something that Tory whips are not confident of achieving. The most likely scenario is that he will be forced to accept a further loss of the UK’s leverage and its standing among allies. Co-operation will certainly come on the intelligence front but this is nothing new. Meanwhile, the government will be forced to dress up its position in as much grand diplomatic verbiage as possible, to obfuscate the reality of the UK’s diminishing influence.

Already, speaking at the G20 Summit, the Prime Minister emphasised the need to show MPs a “whole plan for the future of Syria, the future of the region, because it is perfectly right to say that a few extra bombs and missiles won’t transform the situation”. In principle, it is hard to argue with this. But no such plan will emerge in the short term. The insistence that Assad must go may be right but it is the equivalent of ordering the bill at a restaurant before you have taken your seat. In practice, it means subcontracting out British national security to allies (such as the US, France and Australia) who are growing tired of our inability to pull our weight, and false friends or enemies (such as Russia and Iran), who have their own interests in Syria which do not necessarily converge with our own.

One feature of the 2013 Syria vote was the government’s failure to do the required groundwork in building a parliamentary consensus. Whips have spent the summer scouting the ground but to no avail. “The Labour Party is a different organisation to that which we faced before the summer,” Philip Hammond, the Foreign Secretary, has said. It is ironic, then, that the Prime Minister has faced strongest criticism from the Labour benches. “Everyone wants to see nations planning for increased stability in the region beyond the military defeat of the extremists,” says John Woodcock, the chairman of the Parliamentary Labour Party defence committee, “but after two years of pussy-footing around, this just smacks of David Cameron playing for time when he should be showing leadership.”

The real story is not the distance between the two front benches but the divisions within both parties. There are as many as 30 Conservative MPs said to be willing to rebel if parliament is asked to vote for joining the coalition against Islamic State in Syria. It seems that the scale of the Paris attacks has not changed their position. A larger split in the Labour ranks also seems likely. Even before Paris, there were rumoured to be roughly 50 MPs ready to defy their leader on this question.


At first, in the wake of last week’s attacks, it seemed as if the Prime Minister might force the issue. To this end, he began the G20 in Turkey with a bilateral meeting with President Putin. His carefully chosen words before and after that discussion, in which he was much more emollient about Moscow’s role, showed the extent to which he was prepared to adapt to the changing situation. Cameron hoped that if he could show progress in building an international coalition on the diplomatic front, that might just give him enough to get over the line in a parliamentary vote.

This new approach has not had the desired effect. At the time of writing, the government believes it is too risky to call another vote in the short term. It calculates another defeat would hugely diminish Britain’s standing in the world. In truth, the government was already swimming upstream. On 29 October, the Conservative-
dominated Commons foreign affairs select committee, chaired by Crispin Blunt, released a report on the extension of British military operations into Syria, in anticipation of government bringing forward a parliamentary vote on the question. The report recommended that Britain should avoid further involvement unless a series of questions could be answered about exit strategy and long-term goals. The bar was set deliberately high, to guard against any further involvement (even the limited option of joining the existing coalition undertaking air strikes against IS in Syria).

The most flimsy of the five objections to further intervention in the report was that it will somehow diminish the UK’s leverage as an impartial arbiter and potential peacemaker. This is based on an absurd overestimation of the UK as some sort of soft-power saviour, valued by all parties for its impartiality in Middle Eastern affairs. Britain cannot hope to have any influence on policy if it is always last to sign up while others put their lives on the line. As so often in the past, what masquerades as tough-minded “realpolitik” is nothing of the sort. It is just another post-facto rationale for inaction.

Although it is sometimes said that Britain has yet to recover from the consequences of the invasion of Iraq, the committee report had a retro, 1990s feel. Many of the objections raised to burden-sharing in Syria were the same as those raised against humanitarian intervention in the Balkans two decades ago, when Blunt was working as special adviser to Michael Rifkind as defence and foreign secretary, and the UK was at the forefront of non-intervention. Likewise, two of the committee’s Labour members, Ann Clwyd and Mike Gapes, were veterans of the other side of that debate, and strong supporters of the Nato intervention in Kosovo in 1999. They expressed their dissent from the report’s conclusions but were voted down by their Conservative and SNP fellow committee members. “Non-intervention also has consequences,” said Gapes when he broke rank. “We should not be washing our hands and saying, ‘It’s too difficult.’”

Polling figures have shown majority public support for air strikes against IS since the spate of gruesome public executions that began last year, but nothing seems to change the calculus of the rump of anti-interventionist MPs.

All this promises an uncertain future for British foreign policy. On 6 November, the Defence Secretary, Michael Fallon, suggested that the UK’s existing position, of joining the coalition in Iraq but stopping at the borders of Syria, is “morally indefensible”. The killing of Mohammed Emwazi, aka “Jihadi John”, by a US predator drone on 12 November demonstrates what he meant. Emwazi was a Briton who was responsible for the beheading of British and American citizens, as well as countless Syrians. While the UK government was closely involved in that operation – and has previously used the justification of “self-defence” to “take out” targets in Syria – such are the restrictions placed upon it that we are forced to ask our allies to conduct potentially lethal operations (which are in our core national interests) on our behalf. The very act of “self-defence” is subcontracted out once again.

How long can this last when Islamic State poses a much greater threat to the UK than it does to the US? There is an issue of responsibility, too, with hundreds of British citizens fighting for and with Islamic State who clearly pose a grave danger to other states.


The very notion that Britain should play an expansive international role is under attack from a pincer movement from both the left and the right. There are two forms of “Little Englanderism” that have made a resurgence in recent years. On the left, this is apparent in the outgrowth of a world-view that sees no role for the military, and holds that the UK is more often than not on the wrong side in matters of international security, whether its opponent is Russia, Iran, the IRA or Islamic State. The second, and arguably just as influential, is the Little Englanderism of the right, which encompasses a rump of Tory backbenchers and Ukip. This is a form of neo-mercantilism, a foreign policy based on trade deals and the free movement of goods that regards multilateralism, international institutions and any foreign military intervention with great suspicion, as a costly distraction from the business of filling our pockets.

The time is ripe for long-term, hard-headed and unsentimental thinking about Britain’s global role. The country is not served well by the impression of British “decline” and “retreat” that has gained ground in recent times; and it is no safer for it, either. Given how quickly the security and foreign policy environment is changing, the publication of the Strategic Defence and Security Review in the coming week, alongside an update of the National Security Strategy, is likely to raise more questions than it answers. The officials responsible for its drafting do not have an easy brief, and news forecasting is a thankless task. Strategic vision and leadership must come from our elected politicians.

For all the talk of British decline, we are still one of the five wealthiest nations in the world. What we do matters, particularly at moments when our friends are under attack. However, until a new broad consensus emerges between the mainstream Labour and Conservative positions on foreign policy, the Little England coalition will continue to have the casting vote.

Syria continues to bleed profusely and the blood seeps deeper into different countries. There will be no political solution to the civil war there for the foreseeable future; to pretend that there is a hidden diplomatic solution is to wish to turn the clock back to 2011, when that might have been possible. Nor is the security situation any easier to deal with. A few hours before the attacks in Paris began, President Obama gave an interview in which he argued that he had successfully “contained” Islamic State. For the wider Middle East and Europe, that is simply not the case. Now, France will escalate its campaign, and the US will do more. Russia already has troops on the ground and will most likely send reinforcements.

The war in Syria is becoming more complicated and even more dangerous. The best that can be hoped for is that the Syrian ulcer can be cauterised. This will be achieved through the blunting of Islamic State, simultaneous pressure on Assad, and the creation of more safe places for Syrians. All roads are littered with difficulties and dangers. Yet, in the face of this ugly reality, is Britain to signal its intention to do less as every other major actor – friend and foe alike – does more? If we have a declared national interest in curtailing Islamic State and stabilising Syria – both because of the growing terrorist threat and because of the huge flow of refugees – then it is neither honourable nor viable to let others take care of it on our behalf.

John Bew is an NS contributing writer. His new book, “Realpolitik: a History”, is newly published by Oxford University Press

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