How to correct global imbalances?

Global currency: The reason the US dollar remains in demand in spite of its national debt and endless printing of money is because the value of the dollar is backed by the US government, its military strength and technological advancement. — Reuters

THE global economy and planetary system is hugely imbalanced because of climate warming and widening social inequities.

Furthermore, Big Power rivalry and disruptive technology has threatened to push these imbalances beyond fragility towards even a collapse. What should we be doing about these existential threats?