STEM Explained

Meteorologists use computer models to predict the weather. Learn why, despite advances in computer science, meteorologists still get it wrong sometimes.

Oceans absorb the greatest amount of solar radiation on Earth. Ocean warming can lead to glaciers melting and ocean acidification.

Rainbows are beautiful examples of optics in nature. We see them thanks to the reflection and refraction of visible light and water.

A Canadian researcher built the first voltage-controlled synthesizer in the 1940s.

Could we use radio waves to charge electrical technologies in the future?

Many people have had children using assisted reproductive technologies. But some of these medical biotech techniques can raise some ethical issues.

Cloud seeding is a type of weather modification. Learn about cloud seeding, as well as its risks and benefits.

The fracking process gets natural gases out of rocks. This process can have effects on freshwater, water quality and even earthquakes!

Can carbon offsets help you reduce your environmental footprint, practice sustainable living and fight climate change?

Biofuels like ethanol might help fight climate change. But they can contribute to food insecurity and greenhouse gases in ways that might surprise you.

These two “point-counterpoint” videos provide arguments for and against using nuclear energy to generate electricity.

Can your body be a source of electricity generation? Maybe, if you understand heat transfer. Explore this concept through a 2013 invention by a Canadian teen.

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

Teen brain development prepares teens for adulthood, but also affects their emotions.

What are microplastics? How are plastics polluting aquatic ecosystems?