Study: Getting to “Half Earth” conservation goal requires careful selection of lands for PAs
How much of the Earth should we protect to save species from going extinct? Some conservationists have suggested an ambitious number: half of the planet.
Prominent biologist Edward O. Wilson, for instance, proposes in his book, “Half-Earth: Our Planet’s Fight for Life,” that devoting half the world to nature would help save the majority of species. Other researchers have backed the “Nature Needs Half” theme in policy and advocacy papers: protecting 50 percent of Earth’s land by 2050 would “help make the planet more livable for humanity.”