Solar Attack (2006) TV movie

The premise of the 2006 Solar Attack TV movie is that the sun is ejecting enormous solar flares that are disrupting life and electrical equipment on and above the earth. The fear is that multiple flares reaching the Earth could ignite the vast volume of methane gas in the atmosphere, creating a gigantic overhead firestorm that would suffocate all life on the planet's surface.

A Boy and His Dog (1975) movie

The 1975 post-nuclear apocalyptic movie A Boy and His Dog stars a young (obviously) Don Johnson as Vic, a loner wandering the desolated United States of 2024 after World War IV. He's accompanied by his telepathic dog Blood (voiced by Tim McIntire, who also co-wrote the music) who helps him ferret out a woman and food. The movie is based on a novella by acclaimed science fiction writer Harlan Ellison.