Arctic Ocean relate to the radioactive contamination of the Arctic Ocean from, for example, Russian radioactive waste dump sites in the Kara Sea and Cold War nuclear test sites such as Novaya Zemlya. In addition, Shell planned to drill exploratory wells in the Chukchi and Beaufort seas during the summer of 2012, which environmental groups filed a lawsuit about in an attempt to protect native communities, endangered wildlife, and the Arctic Ocean in the event of a major oil spill. On 16 July 2015, five nations (United States of America, Russia, Canada, Norway, Denmark/Greenland) signed a declaration committing to keep their fishing
Administrative divisions of Arkhangelsk Oblast Administrative divisions of Arkhangelsk Oblast Within the framework of administrative divisions, Arkhangelsk Oblast is divided into six cities and towns of oblast significance, twenty-one districts, and two island territories (Franz Joseph Land and Victoria Island). Besides, Mirny is a town under the federal government management. In terms of the area, the biggest administrative districts are Novaya Zemlya () and Mezensky District (). The smallest one is Solovetsky District. In terms of the population, the biggest administrative district is Velsky District (61,819 in 2002), the smallest ones are Solovetsky District (968), Novaya Zemlya (2716), and Leshukonsky District (10,708). Most of the