自1985年以来，由苏必利尔湖上的浮标测量到的水表温度以每10年增长1.2度的速率上升，比湖面上方的空气升温速率快15%，并且是湖周围陆地升温速率的2倍。
Since 1985, surface water temperatures measured by lake buoys have climbed 1.2 degrees per decade, about 15 percent faster than the air above the lake and twice as fast as warming over nearby land.
空气中的温度几乎接近于零，而且湖面上已经结成巨大的冰层块。
Temperatures in the air were barely above freezing and huge slabs of ice had already formed on the surface of the lake.
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