My Lords, I am speaking in support of Amendment 84A of the noble Lord, Lord Krebs. I will then speak to my Amendments 85 and 87. I thank the noble Lord, Lord Krebs, and the noble Baronesses, Lady Parminter and Lady Jones of Moulsecoomb, for adding their names to my amendments.
First, the noble Lord, Lord Krebs, has raised important points about the quality of the metric currently being developed to implement biodiversity net gain. Over the summer he was kind enough to share the paper to which he referred by his colleague Professor Katherine Willis. I have to say that it shocked me, as it shows that we are in danger of drifting into a new system which, far from being a positive asset, could be highly detrimental to the environment. This is why I am not reassured by the use of words such as “progressing”, “virtuous” and “improving” by the noble Lord, Lord Blencathra. We could be going backwards if we do not get this right.
We therefore support the amendment from the noble Lord, Lord Krebs, that would set up a process of review of the metrics within six months, taking into account the broad range of factors that determine the ecological importance of sites. I know that the noble Lord, Lord Krebs, has been in dialogue with the Minister about these concerns, and I hope that, in his response, the Minister will provide sufficient reassurance that this matter is being addressed.
My Amendments 85 and 87 address the length of time that any habitat enhancement agreed through the planning process should be protected. As it stands, Schedule 14 to the Bill defines this period as 30 years. After that, the habitats could be destroyed, losing any ecological gains or carbon storage benefits. This goes against the grain of ecological best practice, which emphasises the need to let nature recover for the long term.
In recent advice, Natural England has said:
“Mitigation measures will need to be secured for the duration over which the development is causing the effects—generally 80-125 years.”
The building developments on the land where the displacement takes place will clearly be expected to last more than 30 years. For example, MHCLG has
issued advice on property that makes it clear that a long lease is usually 125 years. So it is right that the creation of any new habitat, in compensation, should also last a lifetime. Our view was echoed in the recent Environmental Audit Committee report, Biodiversity in the UK: Bloom or Bust?, which stated:
“Nature recovery does not happen overnight and must be maintained and built upon for generations. The proposed 30 year minimum to maintain biodiversity net gains will achieve little in terms of delivering long-lasting nature recovery.”
In Committee, we tabled an amendment that would have protected habitats in perpetuity. There was considerable support for our position, but there were also questions about how perpetuity could be measured. So in our new amendment, we have now defined this period as 125 years, which was the only legal definition of the concept, as set out in the Perpetuities and Accumulations Act 2009. We believe that this is the right length of time to create and maintain long-term species-rich habitats to compensate for the destruction of existing established habitats elsewhere.
In Committee, the Minister made it clear that the provision of 30 years was a minimum requirement. He has now tabled further amendments in this group that would give the Secretary of State a power to increase the 30-year period and keep that duration under review. However, we do not believe that this gives the guarantees of long-term habitat protection that we need. There is no indication in the Government’s amendment of the criteria that would be used to vary the duration. I am also grateful to the Bill team for their recent advice that this variation, if introduced, would apply at a policy-wide level and not on an individual project basis. However I do not see where in the Bill this would be assured, since the Government’s amendment just gives a general power to vary the time period and could therefore, in my reading, apply to particular building developments.
The Minister has also raised concerns about whether sufficient landowners would make their land available for a longer term period, but surely landowners who contract to create these new habitats would have to be there for the longer term, otherwise our very fear that the habitat would be destroyed after 30 years becomes a reality. We believe that the long-term timescale of 125 years, as set out in Amendment 85, gives landowners certainty and would ensure that habitats which are destroyed could be recreated for the long term on a like-for-like basis.
This is an important principle which is necessary to legitimise the process of biodiversity net gain. Otherwise, the truth is that it would just be delayed damage. On that basis, I hope the Minister is able to give further reassurances, and I look forward to his response.
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