Dawn by Octavia Butler

Lilith Iyapo wakes up in a spaceship orbiting Earth to find out that humans have destroyed the world and made it unlivable and an alien species, the Oankali, have saved the few humans who survived the war. Lilith is charged with waking her fellow humans to establish a new Oankali-Human society on Earth.

Parable of the Sower by Octavia Butler

This is the first of two novels (Parable of the Talents) centered around a young Black teenager named Lauren Oya Olamina. Due to climate change, a scarcity of resources (especially food and water) has led to a collapse of institutions and a rapid rise in violent crime.