Nobody has said anything about summer being 'new'. Do you ever understand any point or do you just randomly throw out whatever mindless thing pops into your head?<quoted text>
Funny thing is the melting season aka summer happens every year for about three months a year with a few notable exceptions.
The point is the new low in ice volume and extent. The arctic ice remaining in summer has a HUGE impact on the climate over North America.
When it disappears entirely (probably by 2030 at the latest), you will not recognize the climate that results. All that water absorbing solar radiation at 95% rather than reflecting about 90% will be a game changer. And the effect of no summer ice on winter ice, as well as extent DURING the spring melt and fall freeze will also have impacts. The amount of ice at any point will change which changes the amount of solar radiation heating the poles. This will change the difference in temperatures that drives wind patterns. Now go back to your knitting. Let the grown ups deal with it.