Buffalo dung, it can be used for fuel. Could produce natural gas, and can be used for cooking and so on. Process is also quite simple. We are holding this buffalo dung, and leave until a few days, then the gas has been formed, and can be channeled to the furnace or the stove as fuel. I think this is a good step in utilizing an energy waste as material for our lives.
Saving energy we must do, because we know that the energy we use today, such as petroleum is a limited energy. In a sense the ability of the earth to provide energy is very limited. Therefore there must be a balance between supply and consumption. How can we save energy? In daily life many things we can do to conserve energy, including a save on electricity usage. We must save electricity, is one thing we can do to save energy. how do we save on electricity usage? This can be done with the use of electricity-saving equipment, such as using lcd monitor as lcd monitor has a smaller power consumption compared to the tube.