How Energy Conscious Am I?

We are using a lot of energy everywhere. We are wasteful electricity while we don't use electricity. For example, we turned on light but we didn't stay at room. We used the air-conditioner all the time in summer. It is the same thing that the world energy will be use up. We won't have any energy to use and the world will be in dark. I can't image that world! We can alter energy sources by use wind power, harnessing power. However, the place we can make them is very limited and it is very expensive to make them. So, I think we must save the electricity before it was use up. I think it is hot in summer but we should save the electricity. I thought I can save money, so I didn't turn on my air-conditioner. Moreover, I can help our environment not to be more global warming.