Not being mathematically inclined at all, I took Earth Science in college. This was a lab course for the liberal arts types. In this course, circa 1988, I learned many interesting "facts." For example, I learned that the planet was going to run out of fossil fuel..... by the year 2000. I also learned about the coming population explosion. People would be dying in the streets of starvation... by the year 2000. And the graph that demonstrated the population explosion was, naturally, a hockey stick.
Being a credulous youth of 18, I was horrified. But, life intervened and I soon forgot the coming apocalypse, only to remember it 20-something years later, when confronted with the new coming apocalypse. Hey! Whatever happened to those old coming apocalypses?