2. The main greenhouse gases
Greenhouse gases are a group of compounds that are able to trap heat (longwave radiation) in the atmosphere, keeping the Earth's surface warmer than it would be if they were not present. These gases are the fundamental cause of the greenhouse effect. Increases in the amount of greenhouse gases in the atmosphere enhances the greenhouse effect which is creating global warming and consequently climate change.
Use the following website to gain more information about the most important greenhouse gases.
Fill in the chart with the missing/relevant information. You have to read the website text and also click on the single greenhouse gases.