Geothermal Facts

Earth's temperature increases by approximately 1 degree Fahrenheit for every 60-70 feet of depth on average, though this varies significantly based on location and geology.

Scientists told him this river was a myth. In the Peruvian Amazon, it stretches nearly 4 miles and reaches close to 95C - hot enough to cook animals alive. Andres Ruzo went to find it anyway. It was real.

Fly Geyser looks like something from another planet, its mounds streaked bright red and green in the Nevada desert. Nobody designed it. In 1964, engineers drilling a geothermal test well left it uncapped, and scalding mineral water has erupted nonstop ever since. The rainbow colors come from algae that thrive in the hot mineral runoff, and the mound is still growing today.