Almost everywhere you go, there are pieces of old food containers left lying around, these are most commonly made from Styrofoam or paper, both of which are bad for the environment. However, students from the Student Environmental Alliance (SEA) have been promoting an eco friendly alternative.
This is the Eco Clamshell designed and made by GET Enterprises, the food container is dishwasher safe, tough and ideal for universities, schools and workplaces. In addition, when these are being stored they can be piled up nice and high without the worry of them breaking.
Source [Eco Friendly Daily]