Environment Bill

Lord Mackay of Clashfern Excerpts

Report stage
Monday 6th September 2021 Lords Chamber

[The Duke of Montrose (Con)]

My Lords, in the midst of all this great technical expertise, I would like to follow up one point that the noble Baroness, Lady Walmsley, touched on, which is how all this will be achieved. This amendment asks that a further metric be added to those already in the Bill. The Secretary of State is tasked with setting targets for the annual mean level in ambient air, and an amazing combination of statistics will be needed to get that.

Clause 17 asks the Secretary of State to prepare a policy statement, but who is actually going to produce all these measures? The noble Lord, Lord Whitty, hinted at what local authorities could do, but is the Government’s policy to pile all these tasks on to local government? Who will be blamed if the measures are not produced? Are the Government considering what the financial demands are likely to be? The noble Baroness, Lady Finlay, has given us some indication that they may be considerably more than is currently the case.

[Lord Mackay of Clashfern (Con)]

My Lords, I think the later contributions have shown that it is vital, in this connection, for the Government to focus on changing the materials that produce this. It is one thing to say, for example, that we want to go to zero carbon by a certain date. Well, surely we should have that kind of system applied to the way this development arises. Nobody wants to kill people, yet there is a substantial amount of this trouble arising in our country, and the remedy must be focused on getting rid of the particulates as far as possible. That is a very high aim, which is not always made prominent in the literature and the policies.

[Lord Goldsmith of Richmond Park (Con)]

I would like to thank all noble Lords for another important debate and to reassure the House that the Government view this matter as one of the utmost seriousness. As I have set out in previous debates that we have had on this issue, we are committed, through this Bill, to set at least two air quality targets. They will complement each other to fundamentally reduce air pollution in the worst areas, while driving continuous progress to benefit the health of all citizens across England.

Turning first to Amendment 4, tabled by the noble Baroness, Lady Hayman of Ullock, I would like to thank her for the time she has given me over the past few weeks, discussing this and other issues. I know she has also met with my officials and Professor Alastair Lewis, chair of the Air Quality Expert Group, to better understand all the other work we are doing on PM2.5. I thank her for her time in all those meetings.

I will start by reiterating the assurance provided in Committee, first, that the Government want stretching and ambitious targets, like everyone who has spoken in the House today, and, secondly, that the Government are following a robust and evidence-based process to set those air quality targets, which will focus on delivering the greatest possible public health benefits.

The Government are committed to working with internationally renowned experts to deliver evidence to inform air quality targets. We regularly engage with independent expert groups, such as the Air Quality Expert Group and the Committee on the Medical Effects of Air Pollutants, to ensure the process is informed by their advice and reflects the latest evidence, which includes WHO air quality guidelines.

In July, advice from the Air Quality Expert Group and the Committee on the Medical Effects of Air Pollutants was published. This showed that both groups support the proposal to set a concentration target and an exposure reduction target for PM2.5, though both acknowledged the difficulty in setting targets in this area. The Air Quality Expert Group highlighted the substantial challenges associated with modelling future PM2.5 concentrations, a point made by the noble Duke, the Duke of Montrose, including the many uncertainties and significant unknowns. For example, as our climate changes, the potential to reduce PM2.5 concentration also changes, because climate and weather strongly influence pollution levels. We may experience more rain and wind, which disperse pollutants and clean the air, or conversely more heatwaves, which lock in and exacerbate pollution. Some sources of pollution, such as shipping in the English Channel, require work with international partners to reduce emissions. This point was also made earlier.

As we take action to reach net zero, policies such as active travel will have co-benefits, but others may create tensions, as we see with anaerobic digestion and biomass burning. Many of these issues are not easily resolved or modelled, and this demonstrates why we should not be pre-empting or short-cutting the evidence required to underpin long-term target-setting decisions. While it is absolutely necessary to continue to achieve reductions in key pollutants in the air we breathe, the inherent complexity and diverse range of sources of PM2.5—both natural and manmade—means that significant reductions are much more difficult to achieve in practice.

Before setting these targets, it is vital to ensure that both the Government and the public understand the kinds of actions needed and the restrictions which may be required for them to be achieved. This is why we will be consulting on proposed targets and actions required, which may include significant changes to how we heat our homes and travel within towns and cities, early in 2022.

I will briefly respond to a point made by the noble Baroness, Lady Walmsley, about the timetable slipping. On the assumption that the Bill becomes law in its current form, or even in an amended form, allowing the timelines to slip would be a breach in law. We would be breaking the law and that is not something the Government could do, so we will not see this timeline slipping.

We are still working to understand the full mix of policies and measures that would be required to meet the WHO guideline of 10 micrograms per cubic metre, but we know that a range of restrictions on activities are likely to be needed in urban areas to meet any ambitious target. Meeting 10 micrograms would likely require policies, as I said in previous debates, including

“reducing traffic kilometres across our cities by as much as 50%”

and

“a total ban on solid fuel burning”.

As I said in Committee, I do not think it is

“right for us to set a target … that would impact millions of people and thousands of businesses”—[Official Report, 23/6/21; cols. 306-7.]

without first levelling with people about what would be needed and ensuring that we bring them with us in understanding the health benefits of achieving that target. Without fully understanding the policies needed to meet such a limit, we cannot know where the burdens of these policies will fall.

To date, this debate has focused primarily on the concentration target but, again, I remind noble Lords that we are setting two targets that will work side by side. To respond to the noble Lord, Lord Whitty, we have to set a long-term target under Clause 1 and the PM2.5 target under Clause 2. It is not a choice we have; it is inherent in the Bill. This dual-target approach is strongly supported by experts.

In addition to the concentration target, we are developing a new type of target that focuses on reducing people’s exposure to pollution. The population exposure reduction target will be a more important driver for achieving health benefits, both at national and local level. Experts tell us, and a number of speakers today have made plain, that there are no safe limits for PM2.5.

The long-term exposure reduction target will drive a process of continuous improvement to reduce people’s exposure across the whole country, even in locations where the concentration target has been achieved. It will inform how local interventions need to be targeted, particularly where the most people are exposed to elevated levels of pollution. The concentration target that we have spent much time debating serves to provide a general minimum standard and will focus on reducing levels where concentrations are highest, but it is not by any stretch the whole story.

As I have repeatedly set out in debate, in letters to the House and in meetings over the past year, we are working at pace on this. But it would not be right for us in this House to set a target without understanding the measures needed to meet it and bringing the public on board. The Government are therefore not able to accept this amendment.

Amendment 12 was also tabled by the noble Baroness, Lady Hayman. I assure her that, as air is part of the definition of the natural environment, it already falls within the scope of the significant improvement test. In future EIP reviews, we expect new evidence—including updated WHO guidelines, emerging scientific evidence and the like—to be relevant to an assessment of whether further measures are needed to meet interim and long-term targets. The intent of the noble Baroness’s amendment is therefore already delivered by the Bill as drafted and I ask her not to press it.

On Amendment 54, tabled by the noble Lord, Lord Kennedy of Southwark, I thank him for meeting me and Rosamund Kissi-Debrah the week before last. I can say only that if I was not already convinced of the urgency of the case, I certainly would have been by that conversation. Rosamund is an extraordinary campaigner and speaks with huge authority; of course, what happened to Ella is heartbreaking on every level.

In setting these air quality targets, it is as crucial to have a scientifically reliable understanding of the pollution sources and their dispersion as it is to have in place sufficient means to monitor progress and assess compliance. I assure the noble Lord, Lord Kennedy, that the Government are working extensively with experts to seek advice on this and that the details of the targets, including monitoring requirements, will be set out in secondary legislation following a public consultation.

Making sure that information about air pollution is publicly available is clearly important; we already have legal obligations to do so. We do this through a range of channels, in particular the UK-AIR website, which carries an air quality five-day forecast and live information about pollution levels around the country. We are committed to improving the accessibility and usefulness of that information to a wider range of users, and we will undertake a thorough and comprehensive review of the UK-AIR website and the daily air quality index to ensure that they are doing what they are supposed to be doing.

In addition, the Government are funding work with health professionals in a number of therapeutic areas to develop advice for patients about air pollution. They are also looking at working with relevant health charities in longer-term campaigns aimed specifically at the most vulnerable groups.

The amendments tabled by my noble colleagues are hugely important contributions to this debate. I think we all agree that air pollution, particularly fine particulate matter, needs to be reduced urgently to protect the nation’s health. We know that, in setting both the concentration target and the population exposure reduction target, we need to be ambitious. Indeed, we are determined to be ambitious; that is a view shared right across government.

However, we also have to be realistic in how we set that ambition and consider the practical challenges and costs before enshrining new targets in legislation. It is so important to bring society with us and therefore consult properly and meaningfully on the measures that we are likely to need to implement to achieve those significant reductions in air pollutant levels in the future; that is something we will have to do.

I hope that I have managed to reassure at least some noble Lords of the seriousness with which we take this issue, and I beg them not to press their amendments.