11:00 Alex Sobel (Labour)

If we are fighting a war against climate change—we should be under no illusion that we are experiencing a climate emergency—insects are on the frontline of the battlefield and humans are just another species in the war. We are the most intelligent soldiers fighting the war, however, and we cannot expect insects to know that their fields are being built on or that their farmer is using nitrates. We know that our actions are causing the disruption to their ecosystem.

There is a massive depletion of insects, in relation to biomass and abundance. Some studies also show a loss of variety. Most people born by 1980 will perceive that, because 25 or 30 years ago, on a long summer car journey, the windscreen would be full of winged insects. That is now minimal. Why do we need abundance, biomass and a variety of insects to ensure a healthy planet? We need abundance and biomass to support the production of food and water, and to support nutrient cycles and oxygen production. We need variety because that ensures that if a single insect species becomes extinct, we will retain sufficient diversity. New varieties may be able to cope with climate change and other challenges that humans and the planet provide. Studies have most clearly documented the loss of abundance and biomass, which has mostly been caused by land use change for agriculture, the intensification of agriculture, and the application of pesticides, herbicides and novel chemicals in the environment.

This is a crucial debate. Is my hon. Friend aware of the work of Professor Jane Hill, who has been mapping the northward progress of butterflies as the climate changes? They are such a sensitive indicator of the pace of climate change in our country.

The UK does not have the sort of resilience that is needed to assist insects in weathering the storm of climate change. In a global assessment, the UK came 189th out of 218 countries for “biodiversity intactness”.

I praise my hon. Friend to the rafters for securing this debate, because it is quite clear to many people that it would be entirely possible for this country and this planet to save ourselves from climate change, yet destroy ourselves in myriad other ways that breach the other eight planetary boundaries. Picking up on that, does he agree that it is the world’s poorest—both internationally and domestically—who will be disproportionately impacted by the systemic climate shocks that these breakdowns in biodiversity will have on our economies?

Absolutely. The majority of the world’s poor live towards the middle of the planet, and with climate change those populations will have to move north and south to get further away from the equator, which will mean huge shocks to countries if we do nothing or if we do not do enough. That will have the biggest impact on the world’s poor and will increase desertification of the planet.

I will talk briefly about climate more generally. As well as an insect Armageddon, we have a climate emergency, although the Government have not yet acknowledged that. Government decisions on spending and taxation would be exempted from environmental principles, while Ministers are required only to “have regard” to them elsewhere. Legally binding, time-bound targets are also missing from the draft legislation. Our future is tied to the future of the planet and economic policies are not independent of the future survival of life on the planet. The environment Bill must acknowledge and enshrine that, and I hope to see that happen in Committee.

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11:20 The Parliamentary Under-Secretary of State for Environment, Food and Rural Affairs (Dr Thérèse Coffey)

Our academic partnerships are helping us to deliver the most appropriate approaches to key factors affecting insect populations, such as habitat loss and fragmentation, invasive species, pests and disease, climate change and pesticide use; to understand the importance of other emerging potential threats, such as light or radiation; and to better define and predict the impact of climate change. I am conscious of hon. Members’ comments about how tackling climate change will also help biodiversity in insects.

We have set out in the 25-year environment plan our step change in ambition for wildlife, in order to reverse declines. We have committed to improving protected sites and restoring new wildlife-rich habitats outside the protected site network. We are investing in peatland and woodland restoration as a contribution to climate change mitigation, which will also provide important habitats for insects and other wildlife; Members know about our investment in the northern forest. The nature recovery network will expand and connect our existing wildlife habitats by developing partnerships that can effect changes to land management at a catchment or landscape scale.

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