Science Friday Can We Just Throw Our Plastic Garbage Into A Volcano?
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Dec 15, 2025 In this engaging discussion, Dr. Tamsin Mather, a volcanologist from the University of Oxford, shares her fascinating insights from the world's volcanoes. She explains why tossing plastic in volcanoes isn't a viable solution due to toxic emissions. Tamsin also describes the potential of harnessing geothermal energy from volcanic heat and recounts the intriguing sensory experiences of an eruption. Plus, learn about the iconic Pele's hair and her favorite volcanoes, like Etna. A thrilling journey into the fiery world beneath our feet!
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Don’t Use Volcanoes As Trash Incinerators
- Avoid dumping plastic into active volcanoes because burning releases toxic fumes and uncontrolled emissions.
- Instead, incinerate in equipped facilities to capture pollutants and recover energy where possible.
Use Geothermal Power, Not Open Burning
- Harness volcanic heat via geothermal drilling to extract hot water and drive turbines for electricity.
- Use heat exchangers to provide space and water heating, as Iceland demonstrates at scale.
Lava Isn't Like Water — Things Tend To Sit And Burn
- Tamsin has not dropped items into lava but describes sampling lava as unexpectedly difficult.
- She notes objects typically sit on lava and burn unless heat-resistant, contradicting cinematic portrayals.
