Here’s an interesting and informative 3-D interactive graphic about fracking. It takes the reader on a step-by-step of the process:
Breaking Fuel From the Rock
Geologists long knew there was natural gas in the Marcellus shale formation, but thought it impossible to unlock. But producers in the last decade learned to mine this huge resource by drilling horizontally to reach a large surface area, then fracturing the rock with high-pressure water, sand, and lubricant chemicals.
Via: National Geographic
Tags: technology