The Craziest Story of All Time

In 1959 a three ton block of ice was driven from the Arctic Circle to the equator. The trick was you weren't allowed to use any refrigeration. You're allowed to use glass wool and that prize was big. By the time it got to the end it had lost 11% only of its weight. So do we know how much they got? It must have been about 2,700 kilos left.