Ecosystem services such as clean water from forests are free, but now their value is being recognized. Entrepreneurs are developing markets for these services and providing incentives for conservation.
Markets for ecosystem services such as water filtration, erosion control, and pollination benefit the providers and enhance environmental assets.
At long last, new technology opens the possibility of property rights in whales -- but international whaling regulators prefer "no whaling" over conservation.
Chapter 6 from The Technology of Property RightsBy Gregory B. Christainsen and Brian C. Gothberg