Rewilding is the restoration of ecosystems to a state where nature can take care of itself, with minimal human intervention. It focuses on reinstating natural processes and, where possible, missing species, without aiming for a fixed end point. All degraded ecosystems can be rewilded, and in the UK, restoring six million hectares of woodland, peat bogs, heaths, and grasslands could sequester 47 million tonnes of CO₂ annually. In forests, rewilding often means allowing land to revert naturally, enabling trees, soil, and vegetation to absorb carbon while restoring vital ecosystem functions. For example, at Ecologi’s forest sites in Dalry, Scotland, woolly pigs are used to churn soil and clear bracken, improving biodiversity and creating conditions for new growth.