The old new energy: Why geothermal is our best bet for a sustainable future

As our planet grows ever warmer, more people become aware of the need to switch to sustainable energy sources to power our everyday lives. And while there is a strong focus on wind and solar, there are other renewable energy sources that have the potential to make a huge impact as we move toward a more sustainable future. One of the most promising&mdash;and already proven&mdash;is geothermal energy.