1. Chapter 15
The Atmosphere

2. Chap 15, Sect 2 (Atmospheric Heating)
Objectives:
Describe and show an example of conduction, convection, and radiation.
Explain the relationship between the greenhouse effect and global warming.

3. Radiation - transfer by electromagnetic waves
Conduction - transfer by direct contact
Convection - transfer in fluids by circulation

5. The Greenhouse Effect Global Warming gases (CO2 and
water vapor) absorb
thermal energy and
radiate it back to
Earth
this process reminds
us of an actual
greenhouse
an increase in
average global
temperatures
greenhouse gases
in the atmosphere
VS.

6. Effects of Climate Change
Global Warming Current research shows that 81 to 100 percent of climate scientists believe that global warming is caused by human activities.
Climate 101
Interesting Debate
(the views expressed in the video might be perceived as controversial – since politics is involved. This video simply represents both sides of the issue, in order to provide a global perspective for students)
Effects of Climate Change

7. Energy from the sun is the driving force behind the water cycle, which contributes to create Earth’s weather.
The greenhouse effect is Earth’s natural heating process. Increasing levels of greenhouse gases could cause global warming.