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Subfossil wood in Zurich

Im the summer of 2013, WSL researchers found 257 pine stumps on a building site in Zurich's Binz neighborhood on the foothills of the Uetliberg.

At first glance, they look like any old tree stumps, yet they are causing a scientific sensation. What is remarkable about them is their age: the pines grew over 13,000 years ago, just after the retreat of the great alpine glaciers. This makes this substantial and well-preserved discovery the oldest of its kind - and the world's largest for late-glacial trees.

Over the next few years, scientists will be using them to gain valuable insights into the climatic conditions in Switzerland at the end of the last ice age.

Zurich at the end of the last Ice Age

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