There are many old clothes in the world.
Scientists use old cotton clothes. They make new material from them.
The new material can be used as packaging. It is good for the environment.
Cotton decomposes in nature. It is a good material.
Clothes are often made of mixed materials. Scientists separate the cotton.
They use special liquids. The liquids help separate the materials.
The new material can be used in construction. It replaces polystyrene.
Polystyrene is bad for the environment. It does not decompose.
The new material decomposes in nature. Scientists are testing it.
They study whether it decomposes in soil. They also study water.
The scientists wrote about their work in a journal.