Download presentation
Presentation is loading. Please wait.
Published byOsborn Smith Modified over 9 years ago
1
Greenhouse Gases and Energy Budget LP 3 1
2
What are greenhouse gases? Where do they come from? How do they work? 2
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? 3
4
A greenhouse... 4
5
What is the greenhouse effect? 5
6
Composition of the Earth’s Atmosphere Nitrogen N 2 = 78 % Oxygen O 2 = 21 % Argon Ar = 0.9 % Other = <0.1% – Carbon Dioxide CO 2 – Methane CH 4 – Nitrous Oxide NO 2 – Ozone O 3 – Hydrogen 6
7
Greenhouse Gases 7 Carbon Dioxide Water Methane Nitrous Oxide Ozone
8
The “Goldilocks” Principle 8 Mars is too cold, Venus is too hot, and Earth is just right!
9
What if Earth did not have greenhouse gases? Main Greenhouse Gases CO 2 and H 2 O Estimated temperature without greenhouse gases -5 °C (23 °F) Actual average temperature 15 °C (59 °F) Temperature change because of greenhouse gases 20 °C (36 °F) 9
10
10
11
11
12
Frequency 12
13
More Complete (and complex!) Energy Balance Model Incoming Solar Radiation = Outgoing Radiation 13
Similar presentations
© 2024 SlidePlayer.com Inc.
All rights reserved.