A solution to global warming after the fact

During dinner today I got an idea how to combat global warming  as a solution after the fact, long after we passed the so called “point of no return”.  My idea is to detonate a bunch of nukes in large uninhabited forest areas on earth which hypothetically triggers a nuclear winter.

Sure, an ice age might not be great, but better than global warming. Besides, what do we have to lose after passing the point of no return and plant life (in effect all life) is dying? If the idea fails, at least humanity goes out with a bang! I wouldn’t have it any other way.