human
I've heard that some people have been using a new type of plastic that is better for the environment. What is it?
assistant
That’s right, there are many different types of plastics, and some of them are more environmentally friendly than others. The most common type of plastic used today is called polyethylene terephthalate (PET). This type of plastic is made from petroleum, which is a fossil fuel. However, there are other types of plastics that are made from renewable sources such as corn or sugar cane. These materials are often referred to as “bio-based” plastics.