Earth Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.

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

This backgrounder explains what greenhouse gases are and how they contribute to 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.

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

One-third of all food produced is wasted. Learn about the environmental consequences of food waste, and what you can do about it.

How will arctic ice melt from climate change affect exploration, scientific research and geopolitics?

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.

Green walls use plant processes to improve air quality in buildings.

Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.

If you understand heat transfer, you can make lots of little changes at home to help the environment and your household’s bank account!

5 images of some work related to the scientific study of climate such as using instruments to measure changes in climates

4 images of some work that a meteorologist might do such as forecasting the weather and analyzing clouds