The extra amount that disappeared last fall was equivalent to this much. It comes back in the winter, but not as permanent ice, as thin ice -- vulnerable. The amount remaining could be completely gone in summer in as little as five years.
Suprafata care a disparut toamna trecuta este echivalenta cu atat de mult. Revine iarna, dar nu ca si gheata permanenta: ci ca si gheata subtire. Vulnerabila. Cantitatea ramasa ar putea disparea pe timpul verii in mai putin de cinci ani.