Since the Industrial Revolution, an increase in energy consumption has heightened the concentrations of greenhouse gases, such as carbon dioxide (CO2), in the atmosphere, and global warming is progressing. If warming continues without taking any effective countermeasures, there will be major changes in the earth's climate. This will cause phenomena such as rising sea levels and abnormal weather patterns, and have a great impact on the living environments of people and other organisms. Abnormal weather patterns will also increase the risk of damage to the business activities of the Mitsui Fudosan Group.