The Russian government is hosting an international conference about the northern polar regions amid growing signs over control of the huge reserves of oil and gas thought to lie under the Arctic ocean sea bed. The scramble has been set in motion partly by the improved access for the region caused by the melting of the polar ice through climate change. Russia, Canada, the United State, Norway and Greenland all have Arctic coastlines and politicians and experts attending the two-day meeting in Moscow will discuss their claims to the region's un-tapped resources.