This paper reviews a range of issues relating to tradable carbon dioxide quotas. It considers the economic principles on which they are based, compares them with alternative carbon abatement policies, and reviews many aspects of how tradable quotas would be implemented in practice.

Environment and economy-no conflict -- Market mistakes and how unpaid-for external effects are killing us -- Climate change: "the greatest external effect in human history" -- How to deal with external effects -- Solving the climate problem -- Everyone's property is no one's property -- Natural...