A professor in Pennsylvania makes a calculation, and the result blows his mind. The numbers say that his state is sitting atop a massive reserve of natural gas, enough to lead a revolution in how America gets its energy. But another professor in Pennsylvania does a different calculation and reaches a troubling conclusion, that getting natural gas out of the ground poses a risk to public health. The story of two men, two calculations, and two very different consequences.
Learn more or listen again to this week's episode.