1.1 - Our Changing Climate


The first step to taking action on climate change is to understand the basic science behind it and what factors contribute to the problem. This activity explores the greenhouse effect and how human activities contribute to climate change.


Watch the Greenhouse Effect video and take notes on the following terms while watching it.

  • Climate change
  • Fossil fuels
  • Global warming
  • Greenhouse effect
  • Greenhouse gases
Try coming up with your own definitions for these terms, and then complete The Greenhouse Effect handout. Then reflect on the greenhouse effect, global warming, and climate change in the "Our Changing Climate" discussion thread.

Learning Objectives

  • To develop a basic understanding of the science of climate change.
  • To be able to describe how the greenhouse effect is related to climate change.
  • To understand that human activities and greenhouse gases contribute to climate change.

Continue to 1.2 - Climate Change Impacts »