Scientists have developed a new way of tracking polar bears and it could help us better understand how they cope with disappearing sea ice. This breakthrough in stick-on GPS tracking tags will help researchers fill gaps in their knowledge about the behaviour or movement of polar bears like never before. It comes as research highlights the danger these animals face from climate change. Two important groups of polar bears in Hudson Bay, Canada, face becoming locally extinct if global temperatures continue to increase, according to a report released last month. “It’s incumbent upon us to understa…