My Lords, I declare my interest as recorded in the register. I shall speak to Amendment 57 in this group. What I will say follows on very much from the last few words of the previous speaker, the noble Lord, Lord Greaves. In the past 60 years, there has been a trade-off between producing more food from agriculture and protecting the environment. In the UK, we have increased productivity, but at a cost: destroyed habitats, lost species, polluted and over-abstracted water, and an increased carbon footprint. This has been highlighted in many reports, including the one published on Monday by the Food, Poverty, Health and Environment Select Committee, which I have the privilege of chairing.
It is also spelled out in the 2019 State of Nature report, which monitors trends in thousands of species in Britain. The report concludes, for instance, that the total number of breeding birds in Britain went down by 44 million between 1967 and 2009. It also concludes that the Government’s own assessment is that they will not meet most of the global 2020 targets that they are committed to through the convention on biodiversity. The report further concludes that agriculture is one of the most significant causes of these losses in biodiversity.
The Bill is our opportunity to change the way in which we farm, and Amendment 57 seeks to plug a gap in the Bill. As it stands, Clause 1(2) could be a get-out-of-jail clause. The Government could subsidise productivity gains at the expense of the public goods listed in Clause 1(1). Can the Minister reassure us that public goods will not be sacrificed on the altar of productivity?
As the noble Lord, Lord Lucas, has so clearly articulated, new technologies provide the possibility of enhancing productivity with less damage to the environment. This is particularly important when you consider that agricultural productivity is usually measured as a ratio of output over input, which in itself has some very odd features. It means, for example, that if
farm A produced 9 tonnes of wheat with 1 tonne of agrichemical from a certain piece of land, while farm B produced 90 tonnes of wheat with 10 tonnes of agrichemical from a piece of land the same size, both would have identical productivity—but the two would have very different implications for both food supply and environmental pollution. Farm B produces 10 times as much food as A, but with the potential for 10 times as much impact on the environment.
More importantly for Amendment 57, productivity does not include any reference to protecting the environment. If the Government are serious about rethinking the relationship between agriculture and the environment, is it also time to rethink how we measure agricultural productivity? For instance, should it be measured as kilogrammes of potatoes per skylark, or tonnes of wheat per pyramidal orchid? I look forward to the Minister’s reply on the Government’s plans for how they will measure productivity in future and how they intend to balance the increasing productivity that is referred to with protecting the environment.
Lastly, I add a footnote on Amendments 12 and 13, on education. We know that in this country there is a plan afoot to plant many trees. The climate change committee’s target is to plant 1.5 billion trees as soon as possible if we are to meet our 2050 net-zero target. How many forestry graduates are produced each year in this country, and are there enough to provide the expertise to manage this huge change in tree planting?