# New green corridor to encircle London's borders

- Topic: animals
- Source: [Positive News](https://www.positive.news/society/putting-a-ring-on-it-the-plan-to-green-londons-beloved-edges/)
- Published: 2026-10-12
- Original: https://www.positive.news/society/putting-a-ring-on-it-the-plan-to-green-londons-beloved-edges/
- Language: en
- Image: https://www.positive.news/wp-content/uploads/2026/10/iStock-471932407.jpg

## At a glance

- The 200km London Tree Ring project aims to create a continuous green corridor around the capital's outer boroughs.
- Spanning 25 years, the initiative seeks to boost biodiversity and provide urban cooling for ten million people.
- Pilot programs have successfully used native planting to restore elm trees and support declining butterfly populations.
- Community groups and schools will play a central role in planting and caring for new woodland sites.

## Sources

- [Positive News](https://www.positive.news/society/putting-a-ring-on-it-the-plan-to-green-londons-beloved-edges/)

## The story

The charity CPRE London is officially launching the London Tree Ring project on 15 October, an ambitious 25-year initiative to create a 200km green corridor around the capital. Described as an M25 for nature, the project aims to protect the greenbelt, increase biodiversity, and reconnect fragmented wild spaces. By weaving through the boundaries of outer boroughs, the corridor intends to provide urban cooling and carbon sequestration for ten million residents.

Organisers are focusing heavily on community involvement, inviting schools, landowners, and local groups to plant and maintain new habitats. Successful pilot projects have already demonstrated the impact, such as a South West London initiative that planted 1,500 trees to restore elm populations and support the white-letter hairstreak butterfly. Another successful test involved creating a Miyawaki microforest in Sutton using dense native planting techniques.

Through partnerships with the Forestry Commission and the Woodland Trust, the project seeks to establish a scalable model for urban rewilding. CPRE London plans to share its findings with the wider national charity network to encourage similar ecological restorations in other UK cities and towns.

> Summary by Daily Read Bytes. [Read the original source](https://www.positive.news/society/putting-a-ring-on-it-the-plan-to-green-londons-beloved-edges/)