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The Grand Challenges

Driving Question: What are the Grand Challenges?

Each year, humanity releases 51 billion tons of greenhouse gases into the atmosphere. How can we start to make sense of a number that big? This lesson will give you a better understanding of the types of things that release emissions, how they are connected, and what makes reducing emissions so challenging.

Learning Objectives:

  1. Identify the five Grand Challenges.
  2. Explain the obstacles to reducing emissions in each Grand Challenges.
  3. Understand how the Grand Challenges are connected.

Vocab Terms:

  • decarbonization
  • emissions
  • Grand Challenges
  • manufacturing
STEP 1

Opener: The Grand Challenges

Where do greenhouse gas emissions come from? These images will give you some clues into the major culprits.

STEP 2

Why Do We Release So Many Greenhouse Gases?

Teaching Tools

You’ll hear the term Grand Challenges throughout the next few lessons. We use it to group major sources of emissions into categories—an imperfect but helpful way for students to make sense of a complex problem.

The Grand Challenges can help us make sense of a complex problem like decarbonization. But what are the Grand Challenges, and what do they tell us about potential solutions?

Exploring the Grand Challenges External link

To solve climate change, we need to decarbonize. Sounds easy, right? Not so fast: this video will help you see how reducing emissions is anything but.
STEP 3

The Five Categories of Emissions

What puts the challenge in the Grand Challenges? Explore the infographic to see how emissions are tied to pretty much everything we do, and then use the visual aid to dive deeper in the categories. Finally, use the activity to explore whether or not having categories is useful.

STEP 4

Closer: The Grand Challenges

Teaching Tools

If time allows, invite students to share their responses with a partner—or challenge them to map emissions from their school or community.

You understand the Grand Challenges on a global scale. Now think about them on a personal level.

Extension Materials
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Use this article if you’re looking for a text to explore the Grand Challenge framework.
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Understanding Emissions

Teaching Tools
This resource reinforces the Lesson 4.1’s video and infographic. Have students read it if they need a stronger foundation in the Grand Challenges before moving on to solutions.

How can we make sense of a number like 51,000,000,000? Discover how breaking up the problem can make it easier to grasp.