Image for Sinkholes "happen on a regular basis"

Sinkholes "happen on a regular basis"

Duration: 02:10

The science of sinkholes explored

Available since: Sat 15 Feb 2014

This clip is from

Saturday Edition 15/02/2014

Power companies: one million have lost power this week due to storms.

First broadcast: 15 Feb 2014

Image for 15/02/2014 Not currently available

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