What would happen if Greater Manchester gave up half its land? Half-Manchester addresses the growing issue of the climate crisis in Manchester and the need for innovative ideas that conserve biodiversity to make a more resilient place for both humans and non-humans alike. Using E.O Wilson’s Half-Earth theory at a city scale, this project aims to raise awareness of the global issue of the 6th mass extinction using speculative design methods to provide a ‘plausible’ projection of Greater Manchester’s future incorporating scientific theories and contemporary designs prioritising biodiversity.