One Plastic Bag primarily uses narrative language to present the environmental problem through Isatou’s experiences. Miranda Paul uses characterisation, setting, imagery and conflict to show how plastic waste affects Isatou’s community. These narrative elements help readers connect emotionally with the problem rather than simply receiving facts about pollution. The story also has an informative purpose, as readers learn about the environmental effects of plastic bags. By presenting the problem through a personal story, Paul encourages readers to care about the environment and consider how individuals can create change.