Background: Energy is one of the primary inputs for the economic and social development of any country, and activities related to its production, transmission, and consumption have a greater impact on the environment than other human activities. Today, economic affairs, energy consumption, and costs related to environmental controls have become a major issue in national and regional policymaking and legislation. An issue that is of great importance in this regard is the energy intensity index as the ratio of final energy consumption to gross domestic product. This criterion is the most important indicator that reflects the level of energy efficiency in an economy. The smaller this index is, the less energy is spent on producing each unit of product, and vice versa. Reducing energy intensity, in other words, optimizing energy consumption, is considered one of the development goals and objectives of policymakers and economic planners of any country, and achieving this goal is not possible except by recognizing its determining factors and providing thoughtful solutions.
On the other hand, economic growth combined with energy consumption has caused the emission of greenhouse gases, which has become one of the biggest environmental problems in the world. The uncontrolled emission of these gases causes climate change and abnormal warming of the earth. The problem of global warming is a widespread and global challenge that has attracted the attention of many governments, unions, non-governmental organizations and environmentalists in recent years. In the meantime, several ways have been proposed to reduce the volume of greenhouse gases, including collecting these gases and storing them deep in the earth, compressing them with the help of advanced industrial devices, planting artificial forests as the lungs of the earth, upgrading technology and digitizing various economic sectors. In the field of technology, banks and financial institutions can create changes in the field