1. 1.3 Our impact on our planet
Photo acknowledgements, according to arrangement in students' book:
p10tl Rolex Dela Pena/EPA; p10bl Paul Stover/Getty Images; p10tc Ian Leonard/Alamy; p10bc Robert Brook/Science Photo Library; p10tr Photofusion/ Photographersdirect.com; p10br Peter Jordan/Alamy; p11l Keren Su/China Span/Alamy; p11c Sean Gladwell/Shutterstock; p11r Richard Packwood/Photolibrary

2. 1.3 Our impact on our planet

3. 1.3 Our impact on our planet

4. 1.3 Our impact on our planet

5. 1.3 Our impact on our planet

6. 1.3 Our impact on our planet

7. 1.3 Our impact on our planet

8. 1.3 Our impact on our planet

9. 1.3 Our impact on our planet

10. 1.3 Our impact on our planet

11. 1.3 Our impact on our planet

12. 1.3 Our impact on our planet