Conventional economic theory flies in the face of ecological reality. How can a global economy premised on perpetual growth survive in a closed system, which is our planet earth? On this episode of Locus Focus, we talk with Richard Heinberg, author of a new book, The End of Growth, which proposes a startling diagnosis: the expansionary trajectory of industrial civilization is colliding with non-negotiable natural limits which include resource depletion, environmental impacts of unfettered industrial growth and crushing levels of debt.