Environmental issue has been talked about for quite long already. Fighting for this issue can be the reason why many of the environmentally friendly materials are being produced. However, creating something that would inform the public of their current environment situation is not yet in the picture. When we speak of temperature and if it talks about 25 degrees Celsius, everybody knows already what it means. However, if somebody talks about 2.1ppm CO2, this will be something new. This is why the environmental traffic lights are created. Just as the traffic lights that help us regulate vehicular and pedestrian traffic, the environmental traffic lights provide us information about the environmental state of our ecosystem. This will help us understand and become aware at the same time with the current situation of our ecosystem.