Half-Earth

Half-Earth: Our Planet's Fight for Life is a 2016 book by the biologist E. O. Wilson, the last in a trilogy beginning with The Social Conquest of Earth (2012) and The Meaning of Human Existence (2014). Half-Earth proposes that half of the Earth's surface should be designated a human-free natural reserve to preserve biodiversity. Wilson noted that the term "Half-Earth" was coined for this concept by Tony Hiss in his Smithsonian article "Can the World Really Set Aside Half the Planet for Wildlife?"