Reference

Thompson DWJ & Solomon S (2002). Interpretation of recent Southern Hemisphere climate change. Science 296(5569):895–899.
Polvani LM, Waugh DW, Correa GJP & Son SW (2011). Stratospheric ozone depletion: the main driver of twentieth-century atmospheric circulation changes in the Southern Hemisphere. Journal of Climate 24(3):795–812.
Perren BB, Hodgson DA, Roberts SJ, Sime L, Van Nieuwenhuyze W, Verleyen E & Vyverman W (2020). Southward migration of the Southern Hemisphere westerly winds corresponds with warming climate over centennial timescales. Communications Earth and Environment 1:58.