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01.09.2015: A team at the Swiss Federal Research Institute WSL and ETH Zurich aims to extend the currently available 12,500-year-old by another 1,500 or even 2,000 years. This absolutely dated tree-ring chronology is used worldwide for calibrating radiocarbon dates. More
Globalisation means that the world has grown small for both us humans and other creatures. New animal and plant species are constantly migrating to Switzerland or are introduced from other continents via a variety of routes.