在这句话中，结合上下文的意思可以知道，北极地区的未来能否适合人类和非人

In this sentence, combined with the meaning of the context, we can know that the future of the Arctic region is still suitable for human and non-human habitation. If it is translated into a positive meaning, it does not conform to the meaning of the original text. Therefore, the method of adding translation is used to increase whether it is suitable, so that the target readers will be more clear and understand the meaning of the original text, and there will be no misunderstanding.

In this sentence, we can know whether the future of the Arctic region is suitable for human and non-human habitation. If it is translated into positive meaning, it will not conform to the meaning of the original text. Therefore, the method of additional translation is adopted to increase the suitability, which will make the target readers more clear and understand the meaning of the original text without misunderstanding

In this sentence, combined with the meaning of the context, we can know that whether the future of the Arctic region is suitable for human and non-human habitation is still five conclusions. If it is translated into affirmative meaning, it will not conform to the meaning of the original text. Therefore, adopting the method of additional translation to increase whether it is appropriate or not will make the target readers more clear and understand the meaning of the original text, without misunderstanding.