Lorenz is most famous scientifically for discovering the exquisite sensitivity to initial conditions (i.e. chaos) in a simple model of fluid convection, which serves as an archetype for the weather prediction problem. (realclimate.org)
So while it may be theoretically possible to predict long - scale climate changes, it may still be impossible to discern the true drivers of these climate systems amidst the chaos, making the long - term prediction problem moot. (climate-skeptic.com)