Of course that's true. However, it's VERY important to note that there is no known simple "invention" that produces sufficient energy to give all 9 billion future inhabitants of the earth the standard of living enjoyed by most people in the US today. Articles that ignore this reality and tout some unrealistic process that violates the laws of physics do more harm than good. They give people the false impression that simple government mandates will solve the problem. It's important to retain scientific realities, and not let unrealistic notions govern our behaviors.
This article certainly isn't about that.