The poem "Glimpse of a Polluted Future" describes a polluted future where many animals have disappeared from their natural habitats. It expresses regret that more was not done to help people understand how their actions were damaging the environment. If people do not work together to address pollution, it may be too late to save the remaining animals that are disappearing at an alarming rate. The document provides lessons and activities to help students analyze the poem and discuss ways to protect animals and the environment.