People and farm animals make a lot of poop every day. Poop is often an untapped source for energy and fuel. Some people hope it will become popular as a sustain

The history of human waste. How I learned to love the excrement; The early history of human excreta; Treasure nigh soil as if it were gold!; The water closet di

Imagine stopping at a gas station, and filling your car with...poop. Fuel made from poop may sound like science fiction, but it's already science fact. This eng

Did you know that the sunlight that warms your skin on a sunny day can be used to produce energy? But how exactly do you collect sunlight and turn it into energ

This work examines our reliance on fossil fuels and their impact on the environment; the pros and cons of nuclear energy; the debate about biofuels; harnessing