Carbon intensity is a measure of how much carbon dioxide (CO₂) (or CO₂-equivalent greenhouse gases) is emitted per unit of output . It shows how efficiently a company, product, or economy generates value while managing its emissions. In business terms, it’s the ratio between GHG emissions and a relevant activity or economic unit , such as revenue, energy produced, or product manufactured. Formal Definition Carbon Intensity = Total GHG Emissions (in CO₂e) ÷ Unit of Outpu