One in six wildlife species in Britain is at risk of extinction, largely due to loss of habitat. Unlike than tarmac or hard-standing, porous earth with trees, hedges and other kinds of vegetation offers habitat and food to a variety of insects and animals (as well as absorbing water during heavy rain and providing shade on hot days). This is why it is so important to ensure there are sufficient wildlife corridors in urban areas: interconnected green spaces prevent species becoming isolated and protect biodiversity. The interdependency of a clean environment and human health and wellbeing has long been recognised, and this is why Blackwater Valley Friends of the Earth are actively involved in rewilding areas and protecting existing habitats from destruction and insensitive development. Rewilding means making space for nature – that is, retaining and creating areas that are not dominated by human activities but enable a variety of flora and fauna to flourish.