Energy, the ability to do work, is the most important dynamic, organic, and vital part of the human drama. For the past 10,000 years, we have simply grabbed some wood, oil or coal to make a fire. Yes, our ancestors did it even back in the Stone Age. It has been an easy way to cook food, heat our caves, and explode gasses in metal cylinders with pistons. Many believe that we should just continue this human family tradition, even if our collective population has ballooned to billions across the planet and the carbon from our campfires keeps collecting in the atmosphere.