Educational models is one of the most educational experiences that can be used as an alternative to direct experiences because of their ability to attract the attention of the learner and improve learning and expand the scope of the senses and the possibility to take advantage of them.

So I thought of employing this method in environmental awareness and on the most important issues, which has a link with all other environmental issues: Global warming.

This model Illustrate how does greenhouse effect is caused and how it is essential for life on earth depending on luminous arrows which illustrate the path of rays.

It shows as well as sources of the four greenhouse gases:  Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O) and Fluorinated gases, add to: rate of their emissions and duration in atmosphere.

And this model is also supported by posters explaining this phenomenon.