Instructor and Coordinator of the Polar Scientific Diving program Erik Wurz (R) of Germany prepares a safety diver who is on standby in case of an emergency under the ice during a diving session, at the Kilpisjaervi Biological Station in Finland on March 14, 2026. In northernmost Finland, divers learn to conduct research below ice in harsh Arctic conditions to understand how climate change is transforming the world's polar regions. (Photo by John MACDOUGALL / AFP via Getty Images)