Try to save as much energy as possible. Energy production is very burdensome to the earth, often even causing gas mine fires or nuclear energy production. Unused energy can be utilized for more important needs and less energy to be generated. Turn off the lights as you exit the room, do not use warm water for bathing (if the weather is not too cold), use an energy-efficient bulb, turn off the computer when not in use, etc. There are many ways to save energy.