What Do I Do to Save the Earth? 1f081013-0 Kota Yamaya Use Less Heat and Air Conditioning • I use less heat and air conditioning. It is hot for me in the summer of Japan, and cold in winter. But I use a fan instead of using air conditionnig in the summer. In the winter I wear heavy clothing. • The electricity shortage is expected due to the earthquake. I believe that the small actions we can do are important for the earth.