Each winter, the Pacific Ocean’s warm water pool rearranges atmospheric currents, sending ripples of rain, snow, and heat from the West Coast to the Gulf and the Great Plains. The pattern is not random; it follows a chain of cause and effect that mirrors the decision‑making loops we see in energy grids, supply chains, and public health networks.
By tracing the chronology of El Nino’s impacts – from early oceanic signals to regional weather extremes – we can extract a playbook for anticipating, preparing for, and adapting to any large‑scale disturbance that reshapes our environment.