Write a story about the world getting hotter and hotter or colder and colder.
What do your characters do about this new development? What is happening to people and the world around you as this phenomenon begins and takes hold? Me, I think I might go underground in a network of caves and prepare somehow.
If you’re into sci-fi maybe you’d make plans to leave Earth? What would your characters do? Maybe they’d throw one last party then make plans to survive?
What would you do in order to survive?