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Sinkholes: Buried Alive

Premiere

Tomorrow 6:55am - 7:50am PBS America
See Repeats
Tomorrow, 9am - 10:10am PBS America
Wednesday, 3:35am - 4:35am PBS America
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Summary

An investigation into sinkholes, a natural phenomenon that sees the ground give away as a result of weak acid attacking the rocks below, riddling them with holes like Swiss cheese. They can occur gradually, when the surface subsides into bowl-shaped depressions, or suddenly, when the ground gives away - swallowing animals, buildings and even entire highways. This documentary features video footage of dramatic collapses and follows scientists as they explore the underlying forces behind these natural disasters.

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