It'd sure be weird if it turned out overfishing was a significant contribution to El Nino-ish weather disruptions.
This might explain why some of the climate models have been so off. Since climate is generally accepted to be somewhat chaotic (sensitive to initial conditions, at least for a while), an unheard of source of energy might be enough to change things around.
Someone write a science fiction story and explain dark energy as mixing caused by living ramscoops.