1. Greenhouse Gases
Lesson 69

2. Activator Fill out your worksheets as you watch the two videos
Fill out your worksheets as you watch the two videos

3. Greenhouse Gases Absorb reflected sun energy,
making the Earth's atmosphere warmer
Reflect energy and redirect it back to Earth as heat

4. Greenhouse Gases
CO2
Methane
Nitrous Oxide N20
CFCs

5. Why is this a problem?
Greenhouse Gases (co2, CFCs, methane, etc) → Greenhouse effect (heat trapped in atmosphere) → Global Warming (Climate Change)

6. Major consequences of Global Warming
Rising sea levels due to thermal expansion and melting of glaciers and ice sheets

7. 2. Higher temperatures are worsening many types of disasters (storms, heat waves, floods, and droughts)
Consequences

8. Consequences
3. Increasing ground level ozone → created when pollution from cars, factories, and other sources react to sunlight and heat.

9. Computer Activity