



The polar regions are experiencing rapid changes in climate. These changes are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels. Evaluating the interrelated physical, chemical, biological, and societal components of polar ecosystems is essential to understanding their vulnerability and resilience to climate forcing.


The PRB serves as the U.S. National Committee to the International Arctic Science Committee (IASC). IASC is a nongovernmental scientific organization established to encourage and facilitate international consultation and cooperation in all aspects of arctic research, in all countries engaged in arctic research, and in all areas of the arctic region. The mission is to encourage, facilitate, and promote basic and applied interdisciplinary research in or concerned with the Arctic at a circumarctic or international level and to provide scientific advice on arctic issues.
