Critical Thinking Framework — Lesson A (Overview)

Stepping through the Critical Thinking Framework

Overview | How to use the framework.

This site provides a "critical thinking framework" that shows you one way to step through an argument under review.

This lesson introduces the full critical thinking framework using a calm, low-stakes example. The goal is not to debate climate policy. The goal is to practice moving step-by-step.

Prepare

Before reading, remind yourself: You are allowed to slow down. You are allowed to stop. You are allowed to decide what deserves your attention.

Read the Example

Planting trees can help fight climate change by absorbing carbon dioxide from the atmosphere, but it is not a complete solution on its own. To effectively combat climate change, it is essential to also reduce fossil fuel emissions alongside tree planting efforts.

The Role of Trees in Climate Change Mitigation
Trees absorb carbon dioxide (CO₂) through photosynthesis. They convert CO₂ into sugars for growth and release oxygen. This helps reduce greenhouse gases.

Potential Impact of Tree Planting
Research suggests that planting 1 trillion trees could sequester up to 205 billion metric tons of carbon. Forests currently absorb about 7.6 billion metric tons of CO₂ annually — about 25% of global fossil fuel emissions.

Limitations
Tree planting cannot fully counteract climate change on its own. Trees eventually reach a carbon-neutral state. Experts emphasize that reducing fossil fuel emissions is also necessary.

Conclusion
Tree planting is helpful, but it must be combined with emission reductions and forest protection. A holistic approach is needed.

Step Through the Framework

1. Do I want to engage in this issue?

You can choose yes, no, or later. For this lesson, we will engage briefly to practice the steps.

2. What is the main claim?

In one sentence, the main claim is:

___________________________________________

(Hint: It is not “trees exist.” It is about how trees fit into climate solutions.)

3. Are there reasons?

What reasons support the claim?

Trees absorb __________________.
Photosynthesis converts CO₂ into __________________.
Research suggests __________________.

Do you see personal attacks? Do you see emotional pressure? Do you see a false dilemma?

4. Is there evidence?

What evidence is provided?

A numerical estimate about 1 trillion trees.
A statistic about annual CO₂ absorption.

Is the evidence:

Specific?
Relevant to the claim?
Presented calmly?

5. What conclusions are supported?

Based on the information provided, which of these is reasonable?

☐ Tree planting solves climate change completely.
☐ Tree planting helps but has limits.
☐ Tree planting is useless.

6. Do I want to stay engaged?

The article presents benefits and limits. It does not demand immediate action. It does not attack opposing groups. It leaves room for thought.

Would you stay engaged? Why or why not?

___________________________________________

Notice

Does the article include more than one idea (benefits and limits)?
Does it acknowledge trade-offs?
Does it avoid false certainty?
Does it tell you what to think?

Reflect

This example models something important: It supports an idea. It names limitations. It does not escalate conflict.

When an article includes benefits and limits, trust often increases.

Reflection Prompt:
Why might naming limits make an argument stronger instead of weaker?

___________________________________________

Discuss (Optional)

How did the author balance enthusiasm and caution?
What would have made this article less trustworthy?
Would you consider this issue worth ongoing engagement? Why?

Coach’s Notes (Optional)

This example is intentionally moderate in tone.
Notice how the claim is not extreme.
Highlight that the article avoids emotional escalation.
Point out that strong reasoning often includes limits.
Reinforce: the learner’s job is not to agree — but to analyse.

One-Line Takeaway

A well-formed argument explains benefits, names limits, and earns engagement.