New research shows Switzerland was once a land covered in fjords.
A team from the Swiss National Science Foundation says once right across the plain the Alps plunged into a huge lake.
This was around 250,000 years ago when the ice age lifted. Scientists say they have the proof by examining subsoil below the city of Bern, which hides an underground valley.
But there is a modern practical side.
Surveyors are looking for a place to safely store nuclear waste. It has to be safe for at least a million years – which means making sure it won’t be dug up by glaciers in the next ice age.
Govt ready to step in on train staff attacks
Police have to disclose nationality of offenders
Valais bar association says no new fire laws are needed
Major Swiss firm to cut jobs
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This winter was significantly warmer than average
