"Carbon-free" refers to a state or condition in which no carbon emissions or carbon-based pollutants are produced due to a particular activity, process, technology, or system. It implies that the activity or system does not release carbon dioxide (CO2) or other carbon compounds into the atmosphere. Achieving a carbon-free status is a significant goal in efforts to combat climate change and reduce the impact of human activities on the environment. This often involves using renewable energy sources, implementing energy-efficient technologies, and adopting practices that minimize carbon emissions.