The essense of systems thinking: https://en.wikipedia.org/wiki/DSRP
Climate change, hunger, wealth distribution, and chlidhood obesity, while all legitimate crises, are not the root crisis. The root crisis is the way we think. That is the problem that underlies all the other problems. We must change our thinking from binary, linear, and categorical kind to a new form of thinking called systems thinking to solve the issues facing humanity. —Systems Thinking Made Simple, by Cabrera
The ultimate “root crisis” of course is the human condition itself (see Humanity Unorthodox).