许多气候变化怀疑论者就利用南极变冷作为反驳全球变暖的证据。
Many climate change sceptics have used the Antarctic cooling as evidence against global warming.
全球变暖的证据是有力的，尽管有些持怀疑态度的人声称这些证据不够权威。
The evidence of global warming is strong, although some skeptics claim the evidence is not definitive.
虽然我不知道，这并不足以作为全球变暖的证据，却至少，是地球给我们的一个提示。
Although I don't know this is not enough to be an evidence of global warming, it is surely a warning given by the Earth.
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