Any day now, the sun will expand into a red giant and burn us all to a crisp. Well, by “any day”, we really mean “in five billion years or so,” so you should probably still be planning for a significant future and retirement. The sun is really the least of our problems! When it comes to science fiction, there are few things more exciting than speculation about the environment here on Earth, which is apparently MUCH more likely to cause a global catastrophe in the near future than our sun going all red and big and stuff. Sci-fi writers have been imagining terrible scenarios involving environmental poop hitting proverbial fans for as long as the genre has existed, and we love that kinda stuff! What would be more fun than a list of books about worlds being completely screwed up by nature? NOTHING!