Ultra
Pro
ESL lesson
Could We Reflect the Sun?
A B2/B2+ Pro lesson on climate geoengineering and the second conditional. Students explore whether humans could reflect sunlight away from Earth, then discuss hypothetical climate solutions, risks, and consequences.
- Level
- B2 / B2+
- Time
- 75–90 min
- Format
- Video Lesson / Debate
Lesson materials
Choose the resource you want to use in class.
Lesson overview
In this Pro lesson, students explore a provocative climate question: could humans reflect sunlight away from Earth to slow global warming? They watch an authentic explainer video about solar radiation modification, including giant mirrors in space, white rooftops, marine cloud brightening, and stratospheric aerosol injection.
The lesson builds key vocabulary for discussing climate science and geoengineering, then guides learners through a second conditional grammar focus. Students notice how would, could, and might help speakers discuss uncertain future consequences, from local cooling to altered rainfall patterns and regional risks.
The final task asks students to act as climate advisers. In groups, they evaluate one climate intervention, prepare a balanced recommendation, and present their decision to the class. The task encourages accurate second conditional use, critical thinking, and responsible discussion of climate solutions.
Learning outcomes
By the end of the lesson, students can:
explain the basic idea of solar radiation modification
identify key risks and limitations of different climate intervention ideas
use vocabulary connected to climate change and geoengineering
form second conditional sentences accurately
discuss hypothetical solutions using would, could, and might
evaluate climate decisions in a structured speaking task
Teaching at a glance
The essentials for planning this lesson.
- Level
- B2 / B2+
- Teaching time
- 75–90 min
- Language
- Second Conditional · Hypothetical Consequences · Climate Risk Language · Scientific Uncertainty
- Skills
- Listening · Speaking · Grammar · Vocabulary
- Topic
- Environment · Science · Global Issues
- Format
- Video Lesson · Vocabulary Lesson · Grammar Lesson · Debate · Decision-Making
Lesson structure
A practical sequence from warm-up to final task.
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Can We Cool the Planet?
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Climate Fixes and Risks
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Simple Ideas, Big Problems
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Second Conditional for Climate Consequences
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High-Tech Options and Big Risks
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Climate Advisers' Decision
Lesson materials
Everything is here when you are ready to teach.
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