Persistent Organic Pollutants in Polar Ecosystems: Current Situation and Future Challenges Under Climate Change Aicha Abdallah Idriss1, Yun-Ze Gao2, Ning-Zheng Zhu2, Aaron Bizimana1 and Xiang-Zhou Meng1,2* Abstract The polar regions had long been regarded as healthy ecosystems free of any hazardous traces left by human activity. Unfortunately, since the intensification