1. Copyright Pearson Prentice Hall 4-1 The Role of Climate

2. Vocabulary 30) Climate 31) Greenhouse Effect 32) Precipitation 33)Weather

3. What Is Climate? Weather is the day-to-day condition of Earth's atmosphere at a particular time and place. Climate refers to the average year-after-year conditions of temperature and precipitation in a particular region.

4. What Is Climate? Climate is caused by: trapping of heat by the atmosphere latitude transport of heat by winds and ocean currents amount of precipitation shape and elevation of landmasses

5. The Greenhouse Effect Atmospheric gases that trap the heat energy of sunlight and maintain Earth's temperature range include: carbon dioxide methane water vapor

6. The Greenhouse Effect The natural situation in which heat is retained in Earth’s atmosphere by this layer of gases is called the greenhouse effect. Sunlight Earth’s Surface Atmosphere Some heat escapes into space Greenhouse gases trap some heat

7. The Effect of Latitude on Climate Solar radiation strikes different parts of Earth’s surface at an angle that varies throughout the year. At the equator, energy from the sun strikes Earth almost directly. At the North and South Poles, the sun’s rays strike Earth’s surface at a lower angle.

8. Making Climate Graphs Climate graphs show us the two factors in a climate: Temperature and Precipitation

9. Making Climate Graphs Let’s look at two climate graphs The line graph is temperature The bar graph is precipitation

10. Making Climate Graphs Let’s look at two climate graphs The y-axis on the left is for temperature The y-axis on the right is for precipitation

11. Making Climate Graphs What trends can we see on these graphs? 1.Cold winters, hot summers 1.Even precipitation (no rainy season) 1.Moose Factory, Ontario gets much colder in the winter than Chicago,IL