Experts say Mexico holds the world’s highest geothermal potential. New policies and investments could turn the country into a global clean energy powerhouse. Mexico Sits on Vast Untapped Geothermal Energy—Experts Call It the Planet’s Largest Potential Source Mexico may be sitting atop one of the most powerful sources of clean energy on Earth—and it’s largely untapped. Experts are calling it the world’s greatest geothermal potential, with scientis…