而大气中的二氧化碳正是吸收热量导致地球气温上升的罪魁。
Carbon dioxide in the atmosphere helps to trap heat, which causes earth's temperatures to rise.
甚至还有公式量化了这种关系：地球表面附近的气温每上升一度则空气中的水汽增加6—7%。
There's even a formula which quantifies this: 6-7% more moisture in the air for every degree of warming near the Earth's surface.
温室气体在大气中的增加，会使能量较不容易离开地球，因而导致地表和对流层的温度上升。
Adding to those greenhouse gases in the atmosphere makes it harder still for the energy to get out. As a result, the surface and the lower atmosphere warm up.
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