你认为导致温室效应的第一个嫌疑是什么气体？
What gas do you think was the first suspect in causing the greenhouse effect?
提一个小问题，想了解环境变暖的人可以想想：为什么是温室气体的存在导致了全球气候变暖，而不是产生这些气体过程中散发的热量导致了全球温度的升高？
Here I ask a question, those who want to know more about global warming could think about it: why does green gas, but not the heat during the production of it cause global warming?
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