Greenhouse Gases
- A greenhouse gas is a gas that absorbs infrared radiation from the Sun so it remains trapped in the Earth’s atmosphere
- This is important to ensure Earth is warm enough for life, however if levels of these gases in the atmosphere increase it leads to an increase in the greenhouse effect which causes the Earth’s average temperature to rise
- There are many greenhouse gases, the most important are:
- Water vapour
- Carbon dioxide
- Methane
- Nitrous oxides
- CFCs
