Human effect on the ecosystem

Explore the greenhouse effect and learn about the impacts it can have on the environment.

Explore how walking on soil changes how water soaks into the ground and why that matters to gardeners and farmers.

Learn about the chemical reaction that happens between acid rain and limestone.

What is the nitrogen cycle? How do human activities such as using fertilizer affect the nitrogen cycle? How can this cause greenhouse gases?

What's tasty, abundant and high in protein and vitamins? Bugs! Bugs feed about 2 billion people each day. They also hold promise for food security and sustainability.

Learn the organic chemistry behind this very useful plastic. Why is recycling polystyrene hard? Why does polystyrene often end up as solid waste?

Did you know that too much carbon dioxide in the classroom can affect your body, and even your grades?

When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.

Wind energy generates a lot of electricity in Canada. But wind turbines can be dangerous for wildlife.

Learn how to make a pH indicator and test water samples.

Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.

Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.

When a nuclear reactor is no longer in use, the radioactivity in its materials remains. That’s why it’s important to safely deal with the radioactive waste those plants leave behind.

Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.