I feel an ice age coming on
The Bible does mention a time when the sun is 7 times hotter.
I don’t recall if that’s during the Great Tribulation or at the end of this present earth & universe’s etc’s life.
The Hopi’s believe the sun is going to be hot enough to destroy all life not hiding for a few weeks sufficiently underground. They are reportedly planning on insuring seeds etc. are with them during that time.
Certainly it has nothing to do with man, pollution etc.