我们知道，气候模型在为世界农业预测气候方面具有不确定性，它存在着潜在地灾难性的可能性。
We know that climate models predict a much more uncertain climate for world agriculture, with potentially devastating down-side possibilities.
第二个附加的列class_confidence包含介于0到1之间的数字，它表明scorer(根据模型)对于预测有多大的确定性。
The second appended column, CLASS_CONFIDENCE, contains Numbers between 0 and 1 and states how certain the scorer (according to the model) is about the prediction.
最近许多气候模型研究者对2100年的预测翻番就是这种不确定性的一种表现；谁知道在将来又来有什么调整呢。
The recent doubling of many modelers' predictions for 2100 is itself an illustration of the scope of that uncertainty; who knows what revisions may occur in the years ahead.
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