Lord Lawson claims there is no evidence of any changes in extreme weather. Photo: Getty
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Lord Lawson's parallel world where global warming is not a concern

The former Chancellor is trying to turn science on its head to woo climate change "sceptics" from the Conservatives and Ukip.

Further glimpses emerged yesterday evening of the parallel universe that climate change ‘sceptics’ are attempting to create in order to further their cause.

In their alternative world, the laws of atmospheric physics do not apply and increasing emissions of greenhouse gases pose no threat to future prosperity and well-being.

At a debate organised by ‘Christians in Parliament’, Lord Lawson of Blaby, who is the ‘intelligent designer’ of this other universe, provided a masterclass in how to avoid an inconvenient dependence on evidence and reasoning when faced with the risks of climate change.

He started by claiming that most climate scientists now agree that the sensitivity of the climate to changes in atmospheric concentrations of greenhouse gases is low. The only trouble is that the Intergovernmental Panel on Climate Change (IPCC), the world’s most authoritative source of information on the subject, does not agree with him.

On 2 November, the IPCC published the Synthesis of its Fifth Assessment Report, concluding that the value of the long-term rise in global mean surface temperature in response to a doubling of atmospheric concentrations of carbon dioxide is likely to lie between 1.5 and 4.5 centigrade degrees.

This means that, in the real world, the global average temperature could be 5 centigrade degrees or more above its pre-industrial level by the end of this century, if annual global emissions of greenhouse gases continue to increase at the current rate.

However, Lord Lawson chose only to accept the low end of the range cited by the IPCC, warming that the report should not be considered “the last word” and instead should be treated as a scientific smorgasbord from which it is possible to pick and choose which facts to accept.

He argued that global temperature would therefore only rise by 2.5 degrees this century compared with pre-industrial, and went on to cite estimates by the IPCC that this would cause damage equivalent to between 0.2 and 2.0 per cent of global GDP.

Significantly, he neglected to mention that the IPCC is very cautious about the credibility of these figures, noting: “These impact estimates are incomplete and depend on a large number of assumptions, many of which are disputable. Many estimates do not account for the possibility of large-scale singular events and irreversibility, tipping points, and other important factors, especially those that are difficult to monetize, such as loss of biodiversity.”

Similarly, Lord Lawson told the audience that there was no evidence of any changes in extreme weather. But in the real world, the IPCC report found: “Changes in many extreme weather and climate events have been observed since about 1950. Some of these changes have been linked to human influences, including a decrease in cold temperature extremes, an increase in warm temperature extremes, an increase in extreme high sea levels and an increase in the number of heavy precipitation events in a number of regions.”

Having declared that climate change could only lead to small risks in his parallel universe, Lord Lawson called for people and ecosystems to simply adapt to future impacts. He predicted that future generations would anyway be much richer than people are today by assuming that economic growth in his alternative world will continue largely unaffected by any impacts of climate change.

However, recent research has shown that climate change can undermine the drivers of economic growth and that unabated emissions could lead to a collapse on living standards.

From the audience, I asked Lord Lawson if he accepted or rejected the following conclusion about the real world from the new IPCC report:

“Without additional mitigation efforts beyond those in place today, and even with adaptation, warming by the end of the 21st century will lead to high to very high risk of severe, widespread, and irreversible impacts globally.”

Lord Lawson remained silent.

But the construction of the parallel universe in which atmospheric physics does not apply allows Lord Lawson to justify his main objection to climate change policies. He is implacably opposed to the UK limiting its consumption of fossil fuels.

He attacked the Climate Change Act, which he wrongly attributed to Ed Miliband. In fact, the Bill was introduced into Parliament almost 12 months before Miliband became Secretary of State for Energy and Climate Change, and was passed in 2008 with overwhelming cross-Party support, as only five Conservative MPs voted against it.

Lord Lawson declared that the UK is acting alone against climate change, and that countries such as India and China are not doing anything to switch away from fossil fuels. This also is not true, as China is already starting to abandon coal for cleaner sources of energy, and new Indian Prime Minister Modi has promised to bring electric lighting to 400 million people without power by 2019 through the installation of solar panels.

And predictably, he complained about wind farms, labelling them the biggest threat to birds in the UK. Many in the audience laughed at this obvious exaggeration. Cats kill more birds each year than wind turbines.

Lord Lawson has enjoyed extraordinary success in rallying climate change ‘sceptics’ since he set up the Global Warming Policy Foundation in November 2009 to campaign against Government policies.

Last month, he persuaded Owen Paterson, who was sacked as environment secretary earlier this year, to deliver a polemical speech on climate change in which he also denied the risks and attacked Government polices to reduce emissions.

However, with the accumulating evidence of the risks of climate change, Lord Lawson and his allies are having a tough time persuading MPs, except for a few Conservative backbenchers and UKIP, to enter a parallel universe where ideology trumps science.

Bob Ward is a Fellow of the Geological Society and policy and communications director at the Centre for Climate Change Economics and Policy and the Grantham Research Institute on Climate Change and the Environment at London School of Economics and Political Science.

Bob Ward is policy and communications director of the Grantham Research Institute on Climate Change and the Environment at London School of Economics and Political Science.

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Will Euroscepticism prove an unbeatable advantage in the Conservative leadership race?

Conservative members who are eager for Brexit are still searching for a heavyweight champion - and they could yet inherit the earth.

Put your money on Liam Fox? The former Defence Secretary has been given a boost by the news that ConservativeHome’s rolling survey of party members preferences for the next Conservative leader. Jeremy Wilson at BusinessInsider and James Millar at the Sunday Post have both tipped Fox for the top job.

Are they right? The expectation among Conservative MPs is that there will be several candidates from the Tory right: Dominic Raab, Priti Patel and potentially Owen Paterson could all be candidates, while Boris Johnson, in the words of one: “rides both horses – is he the candidate of the left, of the right, or both?”

MPs will whittle down the field of candidates to a top two, who will then be voted on by the membership.  (As Graham Brady, chair of the 1922 Committee, notes in his interview with my colleague George Eaton, Conservative MPs could choose to offer a wider field if they so desired, but would be unlikely to surrender more power to party activists.)

The extreme likelihood is that that contest will be between two candidates: George Osborne and not-George Osborne.  “We know that the Chancellor has a bye to the final,” one minister observes, “But once you’re in the final – well, then it’s anyone’s game.”

Could “not-George Osborne” be Liam Fox? Well, the difficulty, as one MP observes, is we don’t really know what the Conservative leadership election is about:

“We don’t even know what the questions are to which the candidates will attempt to present themselves as the answer. Usually, that question would be: who can win us the election? But now that Labour have Corbyn, that question is taken care of.”

So what’s the question that MPs will be asking? We simply don’t know – and it may be that they come to a very different conclusion to their members, just as in 2001, when Ken Clarke won comfortably among MPs – before being defeated in a landslide by Conservative activists.

Much depends not only on the outcome of the European referendum, but also on its conduct. If the contest is particularly bruising, it may be that MPs are looking for a candidate who will “heal and settle”, in the words of one. That would disadvantage Fox, who will likely be a combative presence in the European referendum, and could benefit Boris Johnson, who, as one MP put it, “rides both horses” and will be less intimately linked with the referendum and its outcome than Osborne.

But equally, it could be that Euroscepticism proves to be a less powerful card than we currently expect. Ignoring the not inconsiderable organisational hurdles that have to be cleared to beat Theresa May, Boris Johnson, and potentially any or all of the “next generation” of Sajid Javid, Nicky Morgan or Stephen Crabb, we simply don’t know what the reaction of Conservative members to the In-Out referendum will be.

Firstly, there’s a non-trivial possibility that Leave could still win, despite its difficulties at centre-forward. The incentive to “reward” an Outer will be smaller. But if Britain votes to Remain – and if that vote is seen by Conservative members as the result of “dirty tricks” by the Conservative leadership – it could be that many members, far from sticking around for another three to four years to vote in the election, simply decide to leave. The last time that Cameron went against the dearest instincts of many of his party grassroots, the result was victory for the Prime Minister – and an activist base that, as the result of defections to Ukip and cancelled membership fees, is more socially liberal and more sympathetic to Cameron than it was before. Don’t forget that, for all the worry about “entryism” in the Labour leadership, it was “exitism” – of Labour members who supported David Miliband and liked the New Labour years  - that shifted that party towards Jeremy Corbyn.

It could be that if – as Brady predicts in this week’s New Statesman – the final two is an Inner and an Outer, the Eurosceptic candidate finds that the members who might have backed them are simply no longer around.

It comes back to the biggest known unknown in the race to succeed Cameron: Conservative members. For the first time in British political history, a Prime Minister will be chosen, not by MPs with an electoral mandate of their own or by voters at a general election but by an entirelyself-selecting group: party members. And we simply don't know enough about what they feel - yet. 

Stephen Bush is editor of the Staggers, the New Statesman’s political blog. He usually writes about politics.