Our survival on earth, this chapter argues, depends on the conservation of the world’s natural resources. These resources comprise of soil, water, the atmosphere, plants, trees, and other life forms. The chapter looks at the earth’s current ‘ecological footprint’ and the future of that ecological footprint as it stands now. There is now widespread scientific consensus that biodiversity is being lost, and that pressures on biodiversity are increasing. The chapter asks what we can do about this, in terms of international law. The chapter identifies how international law seeks to ensure the protection and conservation and sustainable use of nature, its ecosystems and biodiversity, and the effectiveness of measures developed to conserve land?based living resources, forests, and deserts.