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of the US Land boundaries: total: 20,241.5 km border countries: Azerbaijan 284 km, Belarus 959 km, China (southeast) 3,605 km, China (south) 40 km, Estonia 290 km, Finland 1,313 km, Georgia 723 km, Kazakhstan 6,846 km, North Korea 17.5 km, Latvia 292 km, Lithuania (Kaliningrad Oblast) 227 km, Mongolia 3,441 km, Norway 196 km, Poland (Kaliningrad Oblast) 432 km, Ukraine 1,576 km Coastline: 37,653 km Maritime claims: territorial sea: 12 nm contiguous zone: 24 nm exclusive economic zone: 200 nm continental shelf: 200-m depth or to the depth of exploitation Climate: ranges from steppes in the south through humid continental in much of European Russia; subarctic in Siberia to tundra climate in the polar north; winters vary from cool along Black Sea coast to frigid in Siberia; summers vary from warm in the steppes to cool along Arctic coast Terrain: broad plain with low hills west of Urals; vast coniferous forest and tundra in Siberia; uplands and mountains along southern border regions Elevation extremes: lowest point: Caspian Sea -28 m highest point: Gora El'brus 5,633 m Natural resources: wide natural resource base including major deposits of oil, natural gas, coal, and many strategic minerals, timber note: formidable obstacles of climate, terrain, and distance hinder exploitation of natural resources Land use: arable land: 7.17% permanent crops: 0.11% other: 92.72% (2005) Irrigated land: 46,000 sq km (2003) Total renewable water resources: 4,498 cu km (1997) Freshwater withdrawal (domestic/industrial/agricultural): total: 76.68 cu km/yr (19%/63%/18%) per capita: 535 cu m/yr (2000) Natural hazards: permafrost over much of Siberia is a major impediment to development; volcanic activity in the Kuril Islands; volcanoes and earthquakes on the Kamchatka Peninsula; spring floods and summer/autumn forest fires throughout Siberia and parts of European Russia Environment - current issues: air pollution from heavy industry, emissions of coal-fired electric plants, and transportation in major cities; industrial, municipal, and agricultural pollution of inland waterways and seacoasts; deforestation; soil erosion; soil contamination from improper application of agricultural chemicals; scattered areas of sometimes intense radioactive contamination; groundwater contamination from toxic waste; urban solid waste management; abandoned stocks o
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