Survivors — Donna Steele

Brett and Lena, worked together in an agriculture lab, concentrating on micro-gardening. After a first date they find themselves transported to thirty-five years in the future following an unexplained attack on the planet that ruined the atmosphere and rendered most of the population sterile. Having to learn about each other as well as their new circumstances, they feel their way in this new and bleak world. Their skills bring new hope to the others around them, but the purpose of the location where they find themselves causes problems between them.Discovering that the main purpose of the dome where they find themselves is reproduction to increase the dwindling population of humans, throws their fledgling relationship into turmoil and Lena into the nightmare that her former marriage became. A science fiction, dystopian, time travel, enforced proximity story.