In an effort to keep this topical, how does the HCO show it to be less of a problem? As I understand the origin of this phenomenon is understood to have to do

In an effort to keep this topical, how does the HCO show it to be less of a problem? As I understand the origin of this phenomenon is understood to have to do with the axial rotation of the earth, and mostly had effects on the nothern hemisphere. The reasons and effect of the warming we experience now are harldy comparable.