The reduction of greenhouse gases (GHGs), including carbon dioxide (CO
), has become one of the most serious issues in the world today to build a sustainable world. Digital economy have several contributions to the reduction of GHG emissions. Among them,
is one of themost important and effect approach to reducing the amount of GHG emissions, where carbon credits are generated by the reduction of CO
emissions in sponsoring projects, which increase CO
absorption, such as renewable-energy, energy-efficiency, and reforestation projects. Although carbon credits themselves do not reduce the amount of CO
emissions around the world, they are important incentives for GHG reduction projects.