As cold as ice
At the time of the flood, Britain was in the grip of an ice age. Huge sheets of ice covered most of the country. Sea levels were also much lower than they are now, and the area between England and France was land, not sea. Water that melted from the ice sheets fed into a massive lake just off the southeast coast of England - and the land bridge formed a natural dam.
'At some point, the dam broke, and a massive flood was unleashed,' explains Sanjeev.
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The lake that fed the mega-flood is shown here in blue. Ice sheets are shown in white, and the red line indicates the position of the land bridge. The black arrows show rivers, and the exposed land between England and France is shown in brown.
Image: Sanjeev Gupta and Jenny Collier |
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