A few years ago, I heard a hypothesis why hotter summers in the northern hemisphere can cause colder winters. I forgot where, or from whom I heard it, but here

A few years ago, I heard a hypothesis why hotter summers in the northern hemisphere can cause colder winters. I forgot where, or from whom I heard it, but here it is: Winters got more severe, and polar can vortex move further south because lands in the north became more dry, and there is less moisture both in the air, and soil.