In a warming world La Niña enables air over the ocean to carry more water vapor. When pushed into hills ashore, the vapor turns into floods.
Michael Mann discusses the deadly South African floods, the role that climate crisis is playing with these extreme events, and what we need to do about it, with BBC World News “The Context” (Apr 14, 2022
Featured Image: Area of extreme flooding, Durban, South Africa on the same latitude as the NSW northern coast area (e.g., Coffs Harbor) demonstrating the apparently global extent of NB4 rainfalls along this band of the world. (The Guardian also reports on these floods) / From Google Earth Pro, by William Hall. Public domain.