Particularly in the world of sea ice, the rate of natural change is outstripping predictions of just a few years ago, and the processes either are accelerating or the predictions were too low to begin with.
特に海氷の世界では 自然の変化は数年前の予想を遥かに上回っており 状況は加速しているか、あるいは 当初の推測自体が過小に過ぎたのです