Nordic Seas intermediate water leaves through the Denmark Straight and the Iceland Ridge. The densest overflow waters leave through the Faroe Bank Channel. The water masses that encompass the Nordic Seas are always changing in response to the local variations that occur between atmosphere-ocean fluxes and convection of intermediate to deep water. The Nordic Seas are found between the North Atlantic and the Arctic Ocean, both having variable surface water conditions. The Nordic Seas are complex in the variety of water masses it contains: two surface waters, three intermediate waters, and three deep waters. Figure 3 shows the water mass circulations that
Polar seas is also an important habitat. There is an expected rise in the exploration and development of the Polar Seas due to an increasing demand for fuel and commodities. The emergence of China and India's economy is considered one of the main drivers of this phenomenon due to an unprecedented appetite for raw materials and fuel. Presently, there are still no exact figures that define the oil and gas reserves in the Polar Seas. Initial explorations, however, have resulted in the identification of its potential. For example, Canada's explorations discovered gas and oil in several Arctic locations such as Beaufort, High