2.7 Ocean freshening and circulation

River inflows to the Arctic Ocean have increased over the last 30 years due to ice melting and increased precipitation. Effects of increased freshwater input to the ocean include a greater absorption of heat, which in turn increases ice melt and glacier calving (ACIA 2004; IPCC 2007). Thermohaline circulation is also affected by these changes which may alter circulation patterns within the ocean. (Arnell N. 2005). Projected global warming during the 21st century will alter the wind and pressure patterns and the ocean circulation system. (International Arctic Science Committee 2010).

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