In Common Wealth, Jeffrey Sachs shows us that we are running up against the realities of a crowded planet. In order to avoid disaster, we need a new economic paradigm: one that is global, cooperative, environmentally aware, and science-based. The old model of a competitive scramble for global power, natural resources, and international markets must be replaced by a new era of global cooperation around shared goals of sustainable development. These are not just utopian dreams, but they won’t be reached on our current trajectory or with our current economic thinking. If we take the right measures now, there will be room for all on the planet. Common Wealth points the way to the global course correction we must embrace for the sake of our common future.