The document discusses climate change and provides evidence that climates have constantly changed over time. It explains that scientists have various sources of evidence for climatic changes, including rocks, fossil landscapes, tree ring data, historical records, and measurements of glacial advances and retreats. The document also lists some of the potential causes of climatic changes, such as variations in solar energy, astronomical relationships between Earth and the sun, ocean circulation changes, volcanic activity, and changes to the atmosphere's composition.

1. Climate Change

3. El Nińo

4. La Nińa

5. Animation

7. Understand how ocean currents impact upon weather and the carbon cycle

8. Know how the carbon cycle operates

9. Know how scientists study climate change

10. Understand the causes and results of climate change

12. Scientist have various sources of evidence for this

13. Rocks

14. Fossil Landscapes

16. Dendrochronology

18. Grape vines growing in UK AD1000

20. Measurements in advances and retreats of glaciers and polar sea-ice

22. Astronomical relationships between the Earth and the Sun

23. Changes in oceanic circulation

24. Meteorites

25. Volcanic activity

26. Plate tectonics

27. Composition of the atmosphere

29. Effects ????

30. Climate change video