What ecological crises exist? How can we measure ecological crises? What indicators can be used? What are planetary boundaries and how close are we to tipping points? What are the multiple meanings of value and how do they compare? What does it mean to re-embed the economy? What is degrowth? How can it be realized? What does that mean for traditional economists? What is a diverse economy and how can diverse economic thinking help solve current ecological crises? What are the bio-physical foundations of social-economic systems? How can we develop more ethical economies?