Carbon content refers to the amount or proportion of carbon present in a substance, material, or product. It represents the quantity of carbon atoms contained within the molecular structure of the material. Carbon content is often measured and expressed as a percentage or weight of carbon relative to the total weight of the substance or material. It is a significant parameter when considering the environmental impact or carbon footprint of a material, as carbon is a major contributor to greenhouse gas emissions and climate change. Understanding the carbon content of materials helps in assessing their potential for carbon sequestration, energy efficiency, and environmental sustainability.