1. Climate

2. Tropics- Between 23. 5 degrees South latitude and 23
Tropics- Between 23.5 degrees South latitude and 23.5 degrees North latitude
generally warm year-round

3. Temperate Zones and 66.5 degrees North and South latitude Temperatures in these regions are moderate

4. Polar Zones- 66.5° to 90° North and South latitude Nearly always cold

6. Tropical Climates
Constant high temperatures
600 cm of rain
Tropical rain forests

7. Tropical Climates
Tropical Wet rains year round
Tropical wet and dry has dry winter due to continental air masses

8. Dry Climates Continental Tropical air dominates Precipitation is low
Vegetation is scarce

9. Dry Climates
Arid- Low precipitation and high evaporation; Vegetation is scarce
Semi-arid- More humid than arid border between wet climates

10. Mild Climates
Humid Subtropical
Marine West Coast
Mediterranean

11. Mild Climates
Humid Subtropical- Southeastern United States, warm muggy weather prevails during warmer months, dry cool conditions winter

12. Mild Climates
Marine West Coast- Constant on shore flow of marine air creates mild winters and cool summers

13. Mild Climates
Mediterranean- Warm summers due to lack of cool ocean currents with mild winters

14. Continental Climate
Warm Summer
Cool Summer
Subarctic

15. Polar climates
Less than 10 degrees Celsius; precipitation generally low

16. Heat Islands The climate is warmer than in surrounding rural areas
increased cloudiness more total precipitation

17. Orbital Effect
Climatic changes may be triggered by changes in earth’s axis and orbit becoming more elliptical
closer to sun, temperatures become warmer

19. Natural Sources of Carbon Dioxide
Volcanoes
Forest Fires
Animals