[News] Worldwide Death

There's also On The Beach by Nevil Shute. Of course, you're basically asking us to give away the ending, because you want a guarantee that nobody lives and everything's hopeless, and at least with On The Beach, there's a glimmer of hope for part of the book. Kind of ruins the suspense.

I'll also throw in The Road by Cormac McCarthy. It's more of an allegory focusing on a man and his son, and their journey through a post-apocolyptic wasteland. Granted, the book ends on an up note of sorts, but given that everything that would live (plants, animals, humans, etc.) is dead or dying in the book, with no hope that the environment will make a turnaround, and no way to grow crops or raise animals, it's doubtful that the characters will live more than a few more years before they run out of food.

Jam it back in, in the dark.