Carbon intensity refers to the amount of carbon dioxide (CO2) emissions produced per unit of a specific activity, product, service, or economic output. It is typically expressed as a measurement of CO2 emissions per unit of energy generated, GDP (Gross Domestic Product) produced, or any other relevant metric. Lower carbon intensity indicates a more environmentally friendly and sustainable process or activity, while higher carbon intensity suggests a greater environmental impact regarding CO2 emissions. Reducing carbon intensity is a key goal in mitigating climate change and transitioning to a more sustainable and low-carbon economy.