Could deep-earth geothermal energy finally replace our reliance on fossil fuels?
In short: Cindy Taff, a former Shell executive, argues that we can harvest massive amounts of clean energy from beneath the Earth's surface. By repurposing fracking technology, we might unlock a constant, weather-independent power source that solar and wind cannot provide.
The Earth contains 50,000 times more energy than all global fossil fuel reserves combined. Accessing this heat requires the same controversial drilling techniques that oil companies have spent trillions to perfect. Taff, speaking at the TED Countdown Summit on June 18, 2025, suggests that shifting this industrial expertise toward geothermal extraction could solve the intermittency issues inherent in current renewable energy sources.
Unlike solar or wind, which depend on favorable weather conditions, geothermal energy offers a consistent, 24/7 power supply. This transition represents a potential breakthrough in meeting global energy demands without the carbon footprint of traditional hydrocarbons.
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Sources
- Summary by Intellect · source: How to Power the World 24/7 — Without Oil | Cindy Taff | TED
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