The Problem of Increasing Human Energy by inventor Nikola Tesla was developed largely based on his acquired knowledge as both a mechanical and electrical engineer, and focuses on his ideas for the survival of the human race. Special reference is also made to the best way of harnessing the sun's energy. Today with the fears of global warming, this Tesla work has been used as a starting point for understanding the problems that the human race is facing. The Problem of Increasing Human Energy is highly recommended for individuals who are interested in scientific ideas toward the longevity of the human race and those interested in key writings of Nikola Tesla.