Does the unique so far pristine ecosystem of the Arctic Seas have planetary functions we don't yet understand?

Question

What might those functions be?

Answer 1

The sea ice served as a stabilizer of the weather.  We can expect more bizzare weather in the near future.  Thats how AGW will become apparent.  The increase in deadly and severe weather will increase world wide,and food production will suffer! I can live with higher prices for food,and energy,but I just can't handle extinction!   We only have this one tiny little wet rock,spinning through space,lets not s***w it up!

Answer 2

The Arctic Seas ecosystem is far from pristine, as the Russians have been dumping radioactive waste and other pollutants into the Arctic waters for many decades.

What those unknown functions are, I have no idea.