My Lords, the Climate Change Committee has made it very clear that the soil is a crucial part of our remediation policies to deal with climate change. I declare an interest because, in a small way, I am an organic farmer and I have a son who is particularly interested in and works with those who want to use soil for sequestration. Whatever one’s interests may be, it is quite clear that the importance of soil is universal; it is a world problem. We have reduced the fertility of our soil almost universally over the past 40 and 50 years. I often want to say that five a day is worth about what four a day might have been some time ago. I am not sure that is scientifically accurate, but it expresses what the difference is—not only is it the fertility of the soil, but the trace elements in the soil.
What is rather curiously called “conventional farming” suffers from the problem that is does not put back the richness of the soil in the same way that historic methods of farming have done. We have to recognise that we have to change, because we cannot go on doing this. If you come, as I do, from the east of England, you know that more and more conventional famers are recognising that the way we farm gives us very few more harvests because we are denuding the soil.
The first reason that soil is crucial is because it is getting far less useful—if we only want to look at it from a utilitarian point of view. The second reason is because we need it to be better able to sequester. That means we really have to bring the soil back to the kind of strength that it had before the war.
The third reason it is crucial is that there are particular soils with special issues. I draw my noble friend’s attention to the question of peatland, which is a remarkable and wonderful sequester of carbon. But if it is ruined or torn up, it becomes the opposite and it exhales carbon, so we have a double whammy. The fact is that the Government have not even embarked on a peatland policy that will reach the level the Climate Change Committee says is essential to meet net zero—to restore all our peatlands by 2045. If we do it at the speed which is, at the moment, being celebrated by Defra, we will not get there.
It is crucially important—some sort of animal has just landed on me and clearly wishes to sequester upon me—to note that, unless we act on soil, we have very little chance of reaching net zero, because the “net” bit of net zero is about sequestration. It is not just about planting trees, although that is crucially important; it is about the whole way we deal with soil, including how we deal with the bare period, which should be covered, and the sorts of things that we can do and which we have to make sure are part of ELMS when it comes to the detail. All those things are essential.
The noble Baroness, Lady Bennett, referred to a very interesting thing: of earth, air and water, earth is the first. Again, one comes back to the words of the most reverend Primate the Archbishop of York, who reminded us of the nature of the Lord’s Prayer.
It is very important that soil should be part of this. My reason for speaking is simply because we have made that very clear in the Climate Change Committee’s report—which has been accepted by the Government and is the basis of our commitment to net zero and the way in which we are going to get there. It would be a great pity if we cannot find a way of including soil. It may be that the way the noble Baroness, Lady Bennett, wants to do it has some technical problem which I have not so far seen, and I am perfectly prepared to be led down some path which enables some other way of doing this. But if we do not include soil, we are again saying something. There is no such thing as being able to negative something without making a statement. Therefore, we either have to do what the noble Baroness, Lady Bennett, would like us to do, or we have to find another way of making sure that soil is part of this.
I end by saying to my noble friend that there is a particular reason why Defra should be saying this: we have not heard enough from Defra about how we are going to improve the soil—we have not heard enough about the details. Therefore, we are not sure that Defra has really taken this on board. The Climate Change Committee is, I think, trying to say to Defra that this is central. For example, we have not yet banned horticultural peat. What on earth are we doing making it worse? We could do that immediately; the industry is ready for it, but we have not yet done it because we are still talking. Climate change gives us no time to talk about this—something that we should have done a long time ago. Please can we have this in the Bill, so that we know where we are and the Government can be held to it?