Naoko Ishii: An economic case for protecting the planet

We all share one planet -- we breathe the same air, drink the same water and depend on the same oceans, forests and biodiversity. Economist Naoko Ishii is on a mission to protect these shared resources, known as the global commons, that are vital for our survival. In an eye-opening talk about the wellness of the planet, Ishii outlines four economic systems we need to change to safeguard the global commons, making the case for a new kind of social contract with the earth.