Explore the complexities of geophysical predictions and uncertainties in this 82-minute AGU Fall Meeting 2008 Lorenz Lecture. Delve into topics ranging from the Butterfly Effect to ensemble predictions, multifractal predictability, and the Anthropocene. Learn about transport in idealized three-gyre systems and its application to surface flow in the Adriatic Sea. Gain insights from presentations by Daniel J.M. Schertzer of Universite Paris-Est Ecole des Ponts ParisTech CEREVE and Irina I Rypina from Woods Hole Oceanographic Institution's Physical Oceanography Department.