My Lords, I support Amendment 259, tabled by the noble Baroness, Lady Young of Old Scone. It is tragic how many of our native trees have died and are dying from imported diseases. I hope that the noble Viscount, Lord Trenchard, will not mind me gently correcting him on one point. The giant sequoia tree—known in this country as the Wellingtonia—was imported from California many years after Capability Brown and Humphry Repton. I also support Amendment 260A, tabled by the noble Earl, Lord Kinnoull, and particularly the need, as has been mentioned by a number of noble Lords, to try to find a way to control grey squirrels, who are certainly destructive of so many tree species in this country.
I now turn to Amendment 283 and wish to pose some questions. The amendment has been tabled by the much-respected noble Baronesses, Lady Jones of Whitchurch, Lady Jones of Moulsecoomb and Lady Bennett, and the noble Lord, Lord Teverson. I often agree with them on their amendments, but on this one I fear it is far too complex a matter to be solved simply by a ban on burning heather, bracken and other vegetation. I must make it clear that I have no interest to declare, other than that one of my children is trying in Scotland—which I think is outside the scope of this Bill—to regenerate heather in an area where there are no grouse and have not been for many decades. So far there, they have not burnt heather but are experimenting with cutting. Heather burning has
become controversial, but it has been used for generations for moorland management and often in areas where there are no grouse.
I commend to noble Lords two papers that I have read recently. One is entitled “Experimental evidence for sustained carbon sequestration in fire-managed, peat moorlands”, published in Nature Geoscience in December 2018, and I quote from it:
“we quantify the effects of prescribed burning … and show that the impacts … are not as bad as is widely thought.”
The second paper I commend is the report of the Molland Moor project on Exmoor, where also there is no grouse interest. This study was co-ordinated by the Exmoor National Park Authority and brought together landowners, conservationists, farmers, ecologists and academics. The lessons learned from the project include:
“We can regenerate heather by burning on as large a scale as possible … We can control the Molinia and reduce the stands of bracken”.
The report comments that it is necessary to micromanage each small area, as there are so many variables. It continues:
“National policy makers must understand this. Molland Moor is hugely different”
from the moor next door.
In March, we debated the Heather and Grass etc. Burning (England) Regulations 2021, which ban the burning without licence of heather on peat over 40 centimetres in depth, on sites of special scientific interest, in special areas of conservation and in special protection areas. In that debate, the noble Baroness, Lady Bakewell of Hardington Mandeville, talked with local knowledge about terrible wildfires on Dartmoor and Bodmin Moor. The noble Earl, Lord Caithness, described a horrendous fire in Caithness and Sutherland in 2019. It burned for six days and emitted 700,000 tonnes of CO2 equivalent. I mention these fires as there is plenty of evidence that controlled burning in relatively small strips at the right time of year and in the right place creates, among other outcomes, firebreaks against wildfires. The risk of wildfires is greater on unmanaged moorland, as old heather becomes woody and tinder-dry. Wildfires do much more damage to peat and to the environment generally than controlled, limited burns, sometimes described as “cool burns”.
All I am saying, and I repeat that I have no direct interest, is that this is a complicated matter on which the science is still evolving. Therefore, to include a ban in the Bill would be inappropriate. I suggest to Ministers that they consider and gather more evidence. Clearly, there should be rules, and perhaps they should be in a future regulation, but such rules must recognise that no two areas of land are ever exactly the same. Of course, this general point may be one of the difficulties of the new environmental land management schemes.
In conclusion, I could not support Amendment 283, but I look forward to hearing the Minister’s view.