根据新的电脑模型预测，随着太空旅游业的增长，火箭所排放的烟尘以及二氧化碳将会促使气候变化。
As space tourism increases, the soot and carbon dioxide emitted from rockets will contribute to climate change, new computer models predict.
在他们的模型中，这些研究人员加倍关注大气中的二氧化碳量，并记录下有不同原因引起的变暖的多少和覆盖的地理类型。
In their model, the researchers doubled the concentration of atmospheric carbon dioxide and recorded the magnitude and geographic pattern of warming from different factors.
通过他们的模型预测，如果二氧化碳浓度翻番，全球的气温可能上升大约2摄氏度。
Their model predicted that if the amount of CO2 doubled, global temperature would rise roughly two degrees c.
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