In the most northern state of the USA you'll see every type of modern transport. But during the winter months the state of Alaska becomes one of the coldest parts of the world. Temperatures fall as low as -50 Celsius. Car engines can freeze and even if your car starts, the snow and ice on the road can make travel impossible. When the weather is like this, the best way to travel is with a team of huskies pulling you. That's according to people like Geoff Roland who prefer traveling by dog sledge. ' Huskies might not be as fast as a modern snowmobile but they are better for the environment.