We live in the critical decade for climate change. The world increasingly experiences the damages and losses from extreme weather events caused by human-made climate change. Crop losses, devastating floods, catastrophic wildfires and rising sea levels cannot be ignored. If we do not achieve a balance between our greenhouse gas emissions and removals from the air, these impacts will become considerably worse and more dangerous. The UK has legally committed to achieving a net zero greenhouse gas balance by 2050. However, it is currently hotly debated how this goal can be achieved. The Land Use for Net Zero (LUNZ) Hub brings together researchers, policy-makers, industry leaders, innovators and rural community representatives from all four nations of the UK. Our 33 member organisations include researchers and practitioners from green finance, agricultural advisory organisations, NGOs, and an arts collective. The goal of the LUNZ hub is to accelerate positive land use change that reduces harmful greenhouse gas emissions, increases food security and restores a healthy environment for plants, animals and people. The Hub will equip UK policy-makers, industry and stakeholders with the advice they need, in the format and timeframe they require, to take policy decisions to help avert dangerous climate change and lead to a better future. We will bring together scientific evidence and stakeholder perspectives to define shared, net zero scenarios (plausible alternative futures)and credible pathways (steps including policies and incentives) to achieve them by 2050. The Hub will establish an Agile Policy Centre, a Net Zero Futures Platform, and a Creative Methods Lab. Within the Hub, our four National Teams will work together with our Topic Expert Groups to build capacity for a Just Transition to net zero that benefits people and planet alike. The Hub will support the UK Government and the devolved administrations in achieving multiple environmental goals by understanding the impacts of policy decisions on all relevant aspects, including renewable energy, agriculture, planning frameworks, afforestation, water management, nature conservation, biodiversity, and rural economies. The Hub will work on several priority policy areas: 1. Land use change that benefits the environment and is socially just, leading to ecosystem co-benefits such as biodiversity, soil health, human health and wellbeing, and green growth at national, regional and local levels; 2. Future agricultural, environmental and food policies that deliver a net zero future, building on the Agriculture Act 2020, Environment Act 2021, Agriculture Bill 2022 (Wales) and 2023 (Scotland), including future sources of finance, payment schemes and measures to reduce greenhouse gas emissions and increase removals while strengthening food security, biodiversity and land-based businesses (e.g. farms, crofts, forestry); 3. Integrating policy with carbon and natural capital markets, to ensure that the drivers and mechanisms for on-the-ground transformation work together for optimal outcomes. Achieving net zero by 2050 will require new technologies and practices which lower greenhouse gas emissions. These will include soil improvement practices, peatland protection and restoration, removal of greenhouse gases from the air and decarbonising our economy, large-scale tree-planting to take up carbon from the air, creation and restoration of habitats, transitioning to a circular economy, and significantly reduce food waste and consumption of higher emitting foodstuffs. To cover these diverse areas the Hub is comprised of the primary players in the UKRI AgriFood for Net Zero Network+, Landscape Decisions Programme, and principal investigators from Greenhouse Gas Removals, Changing the Environment, Digital Environment, AI for Net Zero, and Treescapes Programmes. This team have the experience and expertise to bring together a single voice of authority for Net Zero transformation in the UK.

We are in a biodiversity crisis. A million species of plants and animals are threatened with global extinction, and wildlife populations across much of the planet have been dramatically reduced, perhaps by as much as a half in recent decades. This is of profound concern because biodiversity underpins human existence. Biodiversity provides the foundation of our economies, livelihoods, food security, health and quality of life. Increasing numbers of people, organisations and governments recognise the need to reverse the perilous state of our ecological inheritance. However, while there is unprecedented willingness to act, what we do not know is what will work most effectively to renew biodiversity and ensure continued delivery of its benefits. The Renewing biodiversity through a people-in-nature approach (RENEW) programme will develop solutions to the renewal of biodiversity. We will work, with a sense of urgency, to reshape understanding and action on biodiversity renewal across scales, creating knowledge at the cutting edge of global debates and policy development, and influencing national institutions, communities and individuals. We know that understanding of, and action on, renewal must take a step change and we will focus on the agency of people in nature, both as part of the problem and as the solution. We focus on a set of challenges: how popular support for biodiversity renewal can be harnessed; how populations that are disengaged, disadvantaged, or disconnected from nature can benefit from inclusion in solutions development; how renewal activities can be designed and delivered by diverse sets of land-managers and interest groups; and how biodiversity renewal can most effectively be embedded in finance and business activities (as has occurred with carbon accounting and climate change). This sits alongside the scientific and technical development necessary to underpin solutions options. Biodiversity renewal is a complex and whole system problem. The solutions require the creation of a new kind of inclusive and diverse research community, one that transcends traditional boundaries between the disciplines needed to tackle the environmental crises of the Anthropocene. Solutions also need to address the inequalities and lack of diversity found in current renewal practices. RENEW has therefore prioritised partnership building, to allow us to combine research with experiment, learning, sharing, outreach and impact, across relevant organisations and wider communities. Our approach means that practical impact is guaranteed. With the National Trust as co-owners of RENEW, we will have significant reach through their membership, outreach programs and public voice. Alongside other key partners in RENEW, our links are responsible for or have influence over much of the UK landscape in which biodiversity renewal activities need to occur. We will use the many landscape-scale nature activities currently underway (or planned in the near future) to develop learning, as if they were 'real time' experiments. The UK is one of the most biodiversity depleted countries in the world. Our ways of working in RENEW, the knowledge we develop, and the solutions we propose, will be of international importance. The lessons we learn will enable future biodiversity researchers and practitioners around the world to do better science, and deliver fairer outcomes.