The reason there is no Arctic Ocean ice is because air temperatures are melting it and/or never forming it. It is called heat exchange from clouds migrating from the tropics to the Arctic Circle. This has been occurring with global vortexes since October 4, 2002 when the ice river C Zero in Antarctica reversed flow direction. It was a major global event.
Ice has to exist in enough volume at the poles and other ice structures like the Greenland Ice Sheet in order to keep Earth’s troposphere cool.
Ice is melting because Earth’s troposphere has high levels of greenhouse gases.
There is a complete record on this blog.