I actually remember that middle one!
Excellent memory! It was dated December 24, 1979
I was just a kid then. I had read something about the supposed inevitable heat death of the universe...something about entropy. Then soon after while in a doctor’s office I saw that magazine cover and read the article. I was convinced the ice age was coming and we were all going to slowly freeze to death and the sun was going to burn out...yada yada. I decided the only way to survive was to build underground green houses. I don’t know where I got that idea.