Just Have a Think - Why don't we all just use Geothermal Energy? 27092020

Science tells us there's enough energy in the first 10 kilometres below our planet's surface to provide all our energy needs for millions of years. The Romans tapped into it for their hot water spas. Today, we all know it as Geothermal Energy. There's no carbon dioxide emissions and no air pollution with geothermal, and it's literally right there beneath our feet. So why isn't our entire planet powered by it?