How does the theme of the book fit the novel and today’s world?

There are quite a few themes that fit with today's world but I will choose the climate crises. The Marrow Thieves is a work of speculative climate fiction. It speculates about a not-so-distant future in which the climate crisis has progressed, killing half of the human population and leaving much of the earth uninhabitable. Dimaline makes clear that while the novel includes fantastical elements, it also seeks to reflect on the future we may actually face if the climate crisis deepens.