The surge in human population in the last 2,000 years, due in large part to better health care, has brought a surge in the demand for resources and in pollution. The graphics, photographs, and real-life examples in a thought-provoking...

Did you know horsepower is actually based on the power of a horse? 60 horse power is the equivalent of being pulled by a team of 60 horses! Viewers will learn other interesting facts like this from a presentation that begins with the...