每天，腐烂中的垃圾都释放出大量对气候有害的混合气体，其中超过一半均为与二氧化碳相比能使气候变暖速度加快20倍的沼气。
Everyday, the decaying trash releases large quantities of a climate-harming gas cocktail.More than half of the landfill gas is methane, which warms the planet 20 times faster than carbon dioxide.
沼气分子被来自太阳的紫外线照射后很容易炸裂分离开，所以任何附近的沼气肯定是最近释放出来的。
Methane molecules are easily blown apart by ultraviolet light from the Sun, so any methane around must have been released recently.
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