This seminar discussion features Jeffrey Sachs discussing with students and faculty members his analysis of the crises facing humanity (COVID19, climate, nuclear war) and the most promising strategies for coping with them -- as well as his idea for creating governance structures that would help us cope better with such crises in the future. This presentation and discussion took place at Yale University on 23 February 2021. Opinions and statements expressed by event moderators and participants are their own personal views and do not represent the views of the university.