Published with the support of The New Zealand Law Foundation. As collapses and crises involving ecological systems, economic and financial management and international governance increase, the need for bold alternatives to traditional economic and legal responses has never been more urgent. Property concepts are an important element in the interaction between humans and the natural environment. An important driver of ecological harm, property concepts can also become a powerful tool for responding to ecological problems in ways that have so far eluded both government regulators and markets....