Recycling Yarn Part 1: Making Fibres
This is the first part of a two-part activity on recycling yarn.
Water Treatment
Learn about how water is treated at municipal water treatment plants.
Rachel Chow
Wastewater Process Engineer
The Environmental Impact of Wasted Food
One-third of all food produced is wasted. Learn about the environmental consequences of food waste, and what you can do about it.
Polystyrene: The Pros, the Cons, the Chemistry
Learn the organic chemistry behind this very useful plastic. Why is recycling polystyrene hard? Why does polystyrene often end up as solid waste?