The atmosphere is a community asset that belongs to all of us. The problem is that it is currently an open access resource – anyone can emit carbon dioxide into the atmosphere with no consequences to themselves – but with huge cumulative consequences to the climate and the global community. Many agree that charging companies and individuals for the damages their emissions cause, for example, a comprehensive carbon tax or cap/auction/dividend/trade system, would drastically cut emissions. However, despite some interesting regional experiments, implementing this kind of system via international negotiations at the global level has proven close to impossible. A few critical governments, influenced too much by fossil fuel interests, have been blocking binding commitments...