[YeOldeCurmudgeon]

Originally Posted by Topspinmo

Or this could happen

Thanks To Reduced Solar Activity, We Could Be Heading For A Mini Ice Age In 2030 | IFLScience


Or another theory which humans have no control over.

Milankovitch (Orbital) Cycles and Their Role in Earth's Climate – Climate Change: Vital Signs of the Planet.

Here's the graph:

Graphic: Temperature vs Solar Activity – Climate Change: Vital Signs of the Planet