Geography of Russia , the Russian border is the world's longest. Along the 20,139-kilometer land frontier, Russia has boundaries with 14 countries: Norway, Finland, Estonia, Latvia, Lithuania, Poland (via the Kaliningrad Oblast), Belarus, Ukraine, Georgia, Azerbaijan, Kazakhstan, Mongolia, the People's Republic of China and North Korea. Approximately two-thirds of the frontier is bounded by seawater. Virtually all of the lengthy northern coast is well above the Arctic Circle; except for the port of Murmansk—which receives currents that are somewhat warmer than would be expected at that latitude, due to the effects of the Gulf Stream—that coast is locked in ice much of the
Arctic Circle (organization) issues facing the Arctic as a result of climate change and melting sea ice—such as oil and gas exploration, environmental concerns, national security, and the effects on indigenous populations—as well as the growing international interest in the region. With the opening of shipping lanes and other economic activity in the Arctic, the organization says, the region "is moving to center stage and is playing a significant role in issues such as globalization, economic development, energy exploration, environmental protection and international security." The Arctic Circle held its first open assembly October 12–14, 2013, in Reykjavík, Iceland, at the Harpa Reykjavík Concert