Paris Agreement on Climate Change

Debate between Barry Gardiner and David T C Davies

Wednesday 7th September 2016 Commons Chamber

[Barry Gardiner]

Thank you, Madam Deputy Speaker.

This is interesting because the hon. Member for Monmouth (David T. C. Davies) is one of those who believes that in meeting their climate change commitments the Government are wrongheaded and that man-made climate change is somewhat overblown as a hypothesis. He is, in effect, a climate change denier—[Interruption.]

[David T. C. Davies]

Up until that point, the hon. Gentleman was quite right and I was nodding. I have never ever denied that the climate changes. In fact, on every single occasion that I have spoken on this subject, I have made the point straightaway that of course the climate changes, but that it has been changing for a lot longer than 250 years. The real deniers are people like the hon. Gentleman who seem to deny that the climate changed prior to the industrial revolution.

[Barry Gardiner]

I was of course referring to the hon. Gentleman being a denier of anthropogenic climate change, and he knows that.

However, there are sane heads who understand that when the world’s largest superpowers ratify a climate change treaty that commits the world to a net carbon future by the second half of this century, it is time to do what President Obama said last week and

“put your money where your mouth is.”

Last year, global investment in low-carbon technology was $286 billion. The problem is that investment in developing countries outpaced that in richer nations. We are locked in a low-carbon race and we are losing. The reason I want us to get on and ratify is not because Paris is some sort of totemic environmental symbol, but because political leadership sends a strong signal to attract investment. Countries with a clear policy framework are the ones that attract investment. Countries with a stable policy framework attract investment. The UK has had neither over the past few years.

On solar, the Government plan this month to hike the tax on businesses with rooftop solar installations through a six to eight times increase in business rates. In 2015, they cut all solar subsidy for commercial installations of over 5 MW and reduced the subsidy for the rest by 65%. The Government’s own figures show that that has resulted in a 93% fall in UK solar deployment and the loss of more than 12,000 jobs in the industry.

On wind power, the Government decided to end all subsidy for onshore wind farms despite them being the cheapest source of renewable power. For offshore wind, they took away all investment certainty by announcing that they would extend the levy control framework only to 2021.

On biomass, I wrote to the Secretary of State only a few days ago to ask why regulatory changes to the tariff structure of combined heat and power biomass plants were rushed through this summer, using secondary legislation to amend the renewable heat incentive without proper consultation. No impact assessment was made of the risk to business, and trade associations estimate that £140 million of investment is now at risk.

On carbon capture and storage technology, the Government broke their manifesto promise, cancelling £4 billion of promised finance—the latest £1 billion was cancelled last year just six months before it was due to be awarded, sinking the White Rose and Peterhead projects.

On energy efficiency, the Government ditched the zero-carbon homes policy and finally scrapped their green deal policy despite having no idea about how to replace it with other household efficiency measures.

On transport, the Government reduced the vehicle excise duty incentives for low-emissions vehicles. Is it any wonder that in just four years we have sunk from fourth to 13th in the Ernst and Young index of the best places for investment in low-carbon industries?

Just to make the investment picture complete, they took the quite monstrous decision to sell off the green investment bank. A bank that was precisely set up because there was a market failure that the private sector simply could not address. By abolishing the GIB, they are now prepared to starve low-carbon industries in the UK of the investment that they need at a critical phase of development.

However, not all parts of the energy nexus are being hit by this Government. In 2013, they announced that fracking companies would pay half the tax paid by conventional oil and gas producers. The then Chancellor called the tax regime the

“most generous for shale in the world”.

CCS, commercial solar, business rates on rooftop solar, onshore wind, offshore wind, biomass, the levy control framework, the green deal—is there any part of our energy sector that I have not mentioned? Oh yes, nuclear. Hinkley—oh dear. Dithering, delay, incompetence and an overpriced contract have led to a contract for difference that will now cost the bill payer, not the Government, not the £6.1 billion originally calculated by the Government but the £30 billion as determined by the National Audit Office.

The Hinkley project has already been delayed for eight years, and the Prime Minister has now thrown in into chaos. Two and half years ago, the Government should have reviewed the project on grounds of cost. To do so after the EDF board had taken a final knife-edge investment decision is to show a level of contempt for investors in our energy infrastructure and a lack of understanding of how company boards actually take decisions, sending out the most damaging message and turning investors away from the UK as a market of preference for low-carbon investment.

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[David T. C. Davies]

The hon. Gentleman shakes his head, but that is a fact. There was a cooling from the 1940s onwards. That is why, when I was growing up in the 1970s, people were worried that the next ice age was coming.

From the mid-1970s until about 1998 there was a significant amount of warming, but from 1998 until now there has been no statistically recognisable warming. People keep referring to the third hottest year on record, or whatever it is, but the reality is that when we look at the actual temperature increases, we see that they are absolutely minute. They are almost impossible to detect. Scientists who are asked about it will also have to admit that the margin for error within those increases is much greater than the increases themselves. Given the level of increase that we are seeing, it is perfectly possible to explain it away, because we are not comparing like with like. We are using slightly different temperature gauges, the areas in which we are using them have moved, some of the areas that they are in have changed over the years, and they can be subject to something called the urban heat island effect or to other natural factors. So there has not really been an increase since 1998.

Members may shake their heads, but I have raised this with the Met Office, and also with Professor Jim Skea. Scientists refer to it as the Pause, and they have come up with numerous explanations for it. I have heard about volcanoes, for instance, and the heat going into the ocean. At a meeting in this building, Professor Skea suggested that a pause over 16 or 17 years was statistically insignificant, which prompts an obvious question: if 17 years of temperatures not rising are insignificant, why are 30 or 35 years of temperatures increasing slightly so significant that we have to make radical changes to our economy and our industry to try and tackle that?

[Barry Gardiner]

Of course I have not dismissed the possibility that the hon. Gentleman might be right and that all the meteorological experts in the world are simply mistaken, but does he accept that if his thesis that there is natural as well as anthropogenic warming is correct, we are in a much worse position than we had thought, and therefore anything we can do to minimise the anthropogenic causes becomes all the more important, rather than less so?

[David T. C. Davies]

I do not of course dismiss the possibility that the experts may be right. I have never said they are wrong; I have merely suggested that they ought to be able to answer some fairly basic questions if they expect us as policymakers to go ahead with policies that are going to be profoundly unpopular with the public and which, in many cases, the NGOs that support those policies will not support the consequences of—I will come back to that. The point the hon. Gentleman is making is that if some of this warming is natural, the amount of warming that is not natural is that much greater in terms of the percentage of CO₂ that has caused it. [Interruption.] Well, there is another issue that I am tempted to go into, but I have been asked by the Whips to keep it short and I will respect that, and that is whether or not this is a logarithmic increase. In other words—[Interruption.] Yes, I am getting looks from all around. In simple terms, if X amount of CO₂ has caused Y amount of warming, would 2X of CO₂ cause twice as much warming? People seem to have made the assumption that it would, but of course, in nature things often do not work that way.

Let me return to the Paris agreement. It talks about limiting temperature increases to about 2° of what they were in pre-industrial times. With due respect to the Minister, which pre-industrial times is that? I do not mean to look angry, but which times is he talking about? Presumably 1800 is about the base figure, but pre-industry goes on for about 4 billion years longer than that. We could quite easily go back a few years further and say 2° above temperatures in the medieval warm period, when they were around the same level as they are now. They were around the same temperature as they are now in the Roman optimum, too. I am probably going to mess this point up, but a Greek philosopher—I think he was called Thracius—was writing about date trees in Greece and how they could be made to grow but could not produce fruit, therefore intimating, through that, that temperatures were about the same then as now in Greece because date trees behave in the same way as they did 2,000 years ago. The point I am making is if we took as a pre-industrial basepoint the year 10 AD we could probably carry on merrily putting CO₂ into the atmosphere for quite a while yet before we hit 2° degrees above that period.