Tom Battin of the Alpine and Polar Environment Research Center (Alpole) from the Ecole Polytechnique Federale de Lausanne (EPFL) poses at the start of his project to collects microorganisms from a stream to extract their DNA to better understand how they have adapted to their extreme environment, near the Rhone Glacier in Furka, Switzerland, September 13, 2018. REUTERS/Denis Balibouse