We learn how important recycling is and why you should not throw trash on the streets and how it could lead to more people polluting the city. We also see how one trash bag can lead to everyone throwing their trash on the stretes.

Dr. Octavius' energy-generation machine has gone wildly out of control, and Spiderman urges him to stop it. The doctor states that they can't destroy the machine but that they can stop it by drowning it in the river.

Erin tells her friend about the poisoned drinking water in Hinkley, California. Her friend says that a doctor told her everything was fine, but Erin mentions that the doctor was paid for by PG&E, the company that contaminated the water.

Dr. Luz Caludio discusses the impact of the environmental surroundings on physical health and how its presence can cause not just damage to the ecosystems but to living things.

Hank explains how plastic pollution has had unintended consequences on our planet. He explains how this pollution results in the emission of greenhouse gases, antibiotic resistance and how these pollutants could end up being eaten by people when they eat seafood.