Climate Change Act

Mark Spencer Excerpts

Tuesday 10th September 2013 Westminster Hall

[Barry Gardiner]

No, because we are debating the Climate Change Act 2008, which specifically deals with anthropogenic global warming.

The scientists tell us that since the industrial revolution we have emitted between 460 billion and 630 billion of that l,000 billion tonnes. That means that we have parking space in the atmosphere for a maximum of only 540 billion tonnes of carbon if we are to stand a two-thirds chance of avoiding dangerous climate change. Annual global carbon emissions are approximately 32 billion tonnes. The maths is simple. We have less than 17 years left before we bust our carbon budget, and that is on the rather optimistic assumption that annual global emissions do not rise before 2030.

In the face of that extraordinary scientific consensus, is the hon. Member for Monmouth seriously asking Parliament to consider downgrading the UK’s 2008 Act because of the costs it imposes in moving to a low-carbon economy? Let us examine what the report says about the consequences of failing to meet that budget.

[Mr Mark Spencer (Sherwood) (Con)]

Will the hon. Gentleman give way?

[Barry Gardiner]

I will not give way because I have little time left.

The report considers four different models under different greenhouse gas concentrations over the rest of this century. It specifically states that even on the lowest concentration model it is likely—the probability is 66%—that in the 20 years to 2100 the sea level will be between 26 and 54 cm higher than during the same period to 2005. The report does not point out, but I will, that it is estimated that more than 1 billion people live in low-lying coastal regions around the globe. The effect on those populations of even a 1 metre rise would be wholesale dislocation of refugees. Besides the human tragedy, the estimated cost of the breaching the levees in New Orleans in 2005 is $250 billion. The hon. Member for Monmouth will therefore see that costs are involved in breaching that 2° threshold.

The report states specifically that as global temperatures rise, heat waves are likely—the probability is 90%—to increase, and extreme rainfall events will become more intense as well as more frequent in localised areas. The report does not point out, but I will, that 52,000 people in Europe died as a result of the heat wave in 2003. Besides that human cost, it caused damage of $15 billion in the farming, livestock and forestry industries as a result of drought, heat stress and fire.

The report also states specifically that it is virtually certain—the probability is 99%—that the resulting storage of carbon by the ocean will increase ocean acidification. The report does not point out, but I will, that the destruction of coral reef by ocean acidification would eliminate the essential spawning, nursery, breeding, and feeding grounds of up to 25% of the fish in the sea. Their total biodiversity value alone has been calculated at $5.5 billion a year.

The cost of inaction in the face of climate change is enormous, and the benefits of taking it seriously are that we will create new jobs and technologies that can drive our economy forward. In 2011, just 6% of our economy—the green economy—provided 25% of all growth in the UK. The idea that we can ignore climate change because the costs are too high can be suggested only by a man who is prepared to put his wallet on one side of the scales and his children on the other.

--- Later in debate ---

[David Mowat (Warrington South) (Con)]

Up until now, there have been two main groups in the debate: those who accept that man-made global warming is happening and, therefore, that we need the Climate Change Act; and those who repudiate the idea that it is happening and who think, therefore, that we do not need the Act. I am actually in a third set: I am prepared, on the balance of probabilities, to accept that man-made global warming is happening and needs to be addressed, but I have some severe reservations about the Act, and particularly about the thrust of climate policy in this country.

Why do I accept the science? First, I am ignorant. Frankly, there is too much certainty on both sides of the debate. I agree that the science is not settled, but Members on both sides of the debate talk as if they were more certain of everything than I am of anything. My ignorance on this issue leads me, under the precautionary principle—I have a degree in applied science, although that does not make me an expert—to accept that much of the balance of science, as has been correctly said, says that man-made global warming is happening.

[Mr Spencer]

Given that the whole House seems to accept that the climate is changing, does my hon. Friend feel it is legitimate to debate whether we should spend taxpayers’ money on renewable energy schemes or on mitigating the damage climate change could do to our communities?

[David Mowat]

That is a different matter, namely adaption. I have a lot of sympathy with that point, particularly given the world’s record in failing to get people to agree to act over the last decade or so. However, as my right hon. Friend the Member for Hitchin and Harpenden (Mr Lilley) said, the science is clear: greenhouse gases and water vapour increase temperature, and other things do too. What we do not know, and what the whole debate in science is about, is the weight of those factors.

There are people, who are probably cleverer than anybody in this room, wrestling with that issue, and I do not intend to get into it, other than to say a couple of things. It is probably true that the temperature has not risen for the last 10 or 12 years. Does that, in itself, undermine the thrust of the science and the models? It does not. There will always be a probability of such things, given the noise in the data. However, the Minister or the Opposition Front-Bench speaker might like to tell us how many years of no warming we must have before we seriously question the models. At the very least, the fact that we have had so many years of small amounts of warming tends, under Bayesian probability theory, to take us to the lower end of the forecasts.

As I say, I accept the science. We have seen the Stern report, warts and all, and the costs involved. Parliament put in place the Climate Change Act and the 80% reduction to try to keep the temperature rise to 2° C by 2100, and it was helped in that by five Budgets. There are some good things in the Act. First, it focuses on carbon, not renewables. EU legislation focuses almost entirely on renewables, which is why we are sucked into the false impression that countries such as Germany, which produces significantly more carbon per unit of GDP or per capita than us, are the good guys, who can burn coal and have renewables. Frankly, if a country wants to reduce carbon, it does not have renewables, it stops burning coal. So that is a good aspect of the Climate Change Act. The Act is also clear and hard to fudge. It is also inflexible, which is a strength and a weakness.

The issues I have with the Act are threefold. First, it is, broadly speaking, uncosted. Secondly, it is inflexible, and I will return to that in the light of some of the facts, which are changing. Thirdly, and most importantly—I disagree with the hon. Member for Brent North (Barry Gardiner) on this—it is, broadly speaking, unilateral: nobody else has put in place anything as stringent, and if I am wrong, I look forward to the Minister telling me so at the end.

On the Act being uncosted, it may well be right for the world to address the issue of climate change, but that does cause fuel poverty. That might be a price worth paying, although that case has not been made very much, and the Government might pursue it a little more. Of course, carbon leakage also means, at the margin, that we are losing jobs in some industries—particularly heavy industries in the north—because they rely heavily on power. It always strikes me as a little odd, at a time when we are trying to rebalance the economy, that we are putting manufacturing at a potential disadvantage, although that has not wholly happened yet, and we will see how things pan out.