10 of the Most Dangerous Chemicals in the World. It's our chemical all-star team of death. We've got historic poisons that have claimed the lives of millions in a sinister manner, along with a couple of chemicals that might be in your home. Contact with any of these, in the right dose, will send you running for a hastily scribbled bucket list.
The sunlight goes some way towards heating the Arctic, but heat also comes from the south with ocean currents and airstreams. One branch of the Gulf Stream, called the North Atlantic Current, flows along the coast of Norway and continues all the way to the Arctic Ocean. There it shifts its name to the West Spitsbergen Current, and almost 60 % of the water entering the Arctic Ocean comes with this.
The Arctic Ocean receives a large amount of fresh water from river runoff relative to its area, compared to other oceans. There are five major rivers that flow into the Arctic, the Mackenzie and Yukon in North America, and the three largest in Asia, the Ob, Yenisey and Lena Rivers.