1. What is Geography? The Physical and Human Environment Rivers and Environments Weather and Climate Natural Vegetation in the World Overview of Lower Sec Geography Curriculum Introduction to the Human Environment Population Settlements Agriculture Managing our Changing Environment Land Supply Water Resources Global Warming and Ozone Depletion Mapwork & Basic Technique Human Geography Physical Geography The Environments through Maps Interpreting Topographical Maps Environments through Photographs Sec 1 Sec 2

2. CHAPTER 6 Managing Our Changing Environment

3. Enduring Understanding Students will be able to understand the impact of human activities on the environment at local, regional and global levels.

4. Essential Questions Why is the environment constantly changing? How do human activities affect the environment at local, regional and global levels?

8. These changes have both positive and negative impacts. Clearing forests enables us to expand our cities, land transport networks and improve our lives economically and socially by raising our standard of living (more space and less congestion). However, deforestation can cause us to permanently lose the biodiversity in the forests. Other problems?

9. Using the Earth’s Resources

10. Our Constantly Changing Environment Cars and factories emit pollutants into the air.

18. The invention of container ships has greatly facilitated the growth of industrialisation and global international trade.

22. Most landfills release greenhouse gases like methane and carbon dioxide and eventually leak hazardous chemicals.

24. Coastal cities like Cancun, Mexico, are susceptible to flooding as global sea levels rise due to global warming.