This article is very interesting in explaining how the oceans are engines for transporting heat energy from near the equator to regions closer to the poles.
At the end, the author jumps to conclusions that man-made carbon dioxide from use of fossil fuels is causing tremendous heating of the oceans which causes many kinds of serious disturbances in the oceans and for weather. The two parts of the article are completely separate. The conclusion has nothing to do with the main part.
