It is not just surface, but thickness too, what makes the whole picture. But what will matter in the end is exposing more (dark, albedo-wise) water to sunlight

It is not just surface, but thickness too, what makes the whole picture. But what will matter in the end is exposing more (dark, albedo-wise) water to sunlight rising a notch global warming and melting even more Arctic sea ice. Positive feedback loops should be scary.