A carbon offset is a way to compensate for greenhouse gas emissions produced by an individual or organization. This is typically done by investing in projects that reduce or capture carbon dioxide, such as reforestation, renewable energy, or energy efficiency initiatives. The goal is to balance out the emissions generated by activities like driving a car or flying on an airplane. By purchasing carbon offsets, people and businesses can take responsibility for their environmental impact. For example, if a company emits a certain amount of carbon, it can buy offsets equivalent to that amount, supporting projects that help reduce overall carbon levels in the atmosphere.