Pollution is waste material produced from human activities. It impacts the environment in a negative way. Explores how pollution can affect the air, water, and land in the form of gases, liquids, and solids. Substances that constitute pollution in the environment include: greenhouse gases (CO2, smog, and industrial emissions), oil, blue/green algae, plastic, litter, dog poop, and fertilizer. Also explores how a sustainable future depends upon individuals and society minimizing pollution by making informed and responsible decisions when choosing consumer items.