Arctic ice volume

 This is a sketchy calculation, but they claim they can now penetrate the whole ice layer.  I haven't seen the results yet, and it would lack history.

This is the main calculation, and Influencer Science can spread the news that the ice is melting.  However, it is now building up year by year, and will soon go back to the good old days.

This chart also shows rising ice volumes year by year.  Always remember that the ice is melting and raising the sea levels....