Fragile climate
In no way do I mean to discredit global warming, or human influence on earth’s weather patterns in mentioning 1816, The Year Without a Summer. If anything, it calls attention to how relatively fragile the entire system is: volcanic activity in the South Pacific can have startling influence on Europe and North America. And makes you think further how weather effects humans - how a botched vacation could lead a young goth chick to get involved in a writing contest. Humanity is certain to enjoy many future innovations as the “the world outside” becomes less hospitable.
I don’t mean to sound alarmist or anything, but the sun will be running on fumes in the next 5 billion years or so if we don’t do something about it. Save the sun!