A climate model is run with different carbon dioxide concentrations while other conditions are kept the same. The model gives these global average surface temperatures:
| Carbon dioxide concentration (parts per million) | Global average surface temperature (°C) |
|---|---|
| 280 | 14.0 |
| 420 | 15.0 |
| 560 | 16.0 |
Explain what the results show about the effect of increasing carbon dioxide concentration on global average surface temperature, using the greenhouse-effect mechanism.
109 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.