The Great Ice Age cycles associated with the variation of the atmospheric heat engine efficiency

Investigating all the Great ice Age events throughout the Earth's history, each was found to follow a strong mountain-making process. Therefore, a hyp othesis was put forward with its causality chain as: strong mountain-making process --> great disparity in topography on the Earth surface --> introdu cing efficient atmospheric circulation system (plateau monsoon) --> increas e in global atmospheric heat engine efficiency --> generating more atmosphe ric kinetic energy-enhancing the planetary westerly (under the condition th at the huge relief is longitudinal on the whole) --> widening the temperatu re difference between the equator and the polar regions (restrained by the thermal wind law) --> sharp cooling in high latitudes and the polars (suppo sing the solar radiation was approximately constant) --> forming a Great Ic e Age event.