The Nature of Nature: Why We Need the WildIn this inspiring manifesto, an internationally renowned ecologist makes a clear case for why protecting nature is our best health insurance, and why it makes economic sense. Enric Sala wants to change the world and in this compelling book, he shows us how. Once we appreciate how nature works, he asserts, we will understand why conservation is economically wise and essential to our survival. Here Sala, director of National Geographic's Pristine Seas