What is a non sustainable material?

A non-sustainable material is a resource that is extracted or produced in a way that depletes Natural Resources, harms the environment, or contributes to pollution and climate change. Examples include fossil fuels, certain plastics, and materials derived from deforestation, as their extraction and use can lead to long-term ecological damage and are often not renewable within a human timescale. Using non-sustainable materials can hinder efforts to promote environmental conservation and sustainability.