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Greenhouse Gases and Energy Budget

Greenhouse Gases and Energy Budget. Lesson Plan 3 – Day 1. What are greenhouse gases? Where do they come from? How do they work?. If the amount of energy that comes in to Earth is the same amount of energy that goes out of Earth, how can our planet stay warm?. A greenhouse.

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Greenhouse Gases and Energy Budget

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  1. Greenhouse Gases and Energy Budget Lesson Plan 3 – Day 1

  2. What are greenhouse gases? Where do they come from? How do they work?

  3. If the amount of energy that comes in to Earth is the same amount of energy that goes out of Earth, how can our planet stay warm?

  4. A greenhouse . . .

  5. What is the greenhouse effect?

  6. Composition of the Earth’s Atmosphere • Nitrogen N2 = 78 % • Oxygen O2 = 21 % • Argon Ar = 0.9 % • Other = <0.1% • Carbon Dioxide CO2 • Methane CH4 • Nitrous Oxide NO2 • Ozone O3 • Hydrogen

  7. Greenhouse Gases Carbon Dioxide Water Methane Nitrous Oxide Ozone

  8. The “Goldilocks” Principle Mars is too cold, Venus is too hot, and Earth is just right!

  9. What if Earth did not have greenhouse gases?

  10. Frequency

  11. More Complete (and complex!) Energy Balance Model Incoming Solar Radiation = Outgoing Radiation

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