United Press International: Global warming doesn’t just mean there will be new patterns of mass migration, wars and border lawlessness in the 21st century. For the great climate change isn’t affecting just the warmest parts of the world; it’s also affecting areas that used to be the coldest. The great Arctic Ocean polar ice cap is already melting. The Arctic Ocean could be navigable year-round within decades. The rate of melting of the ice cap, scientists say, is actually accelerating. This may completely …