What it is
Troy Vettese and Drew Pendergrass present a radical ecological vision: rewild half the Earth's surface, transition to plant-based food systems, and use democratic planning (not markets) to manage energy and resource allocation. The book combines ecological science, economic theory, and political philosophy into a concrete (if deliberately provocative) proposal. Uniquely, it includes a companion online game (play.half.earth) where players try to implement these policies and see the consequences.
Why we picked this
Half-Earth Socialism is the most intellectually stimulating eco-political book of the 2020s precisely because it refuses to be moderate. By arguing for positions most readers will find extreme (global veganism, abolishing energy markets, rewilding 50% of land), it forces engagement with the scale of change actually required. The companion game makes abstract policy tangible: try to balance energy, food, biodiversity, and emissions, and discover how genuinely difficult the tradeoffs are.
Key takeaways
- The 'half-earth' concept is based on E.O. Wilson's biodiversity research showing that protecting 50% of land area is necessary to prevent mass extinction.
- The companion browser game (play.half.earth) lets players try to implement the book's proposals, discovering the real tradeoffs between food production, energy, and rewilding.
- The book argues that market mechanisms are structurally incapable of solving the climate crisis because they externalize ecological costs by design, requiring democratic planning instead.