美国能源部说，海弯国家也拥有已知储量的55%。
The United States Energy Department says they also held fifty-five percent of known reserves.
换句话说，大气目前的承受量，仅能允许我们燃烧或排放已知储量四分之一的石油、天然气和煤。
In other words, there is only room in the atmosphere to burn or vent less than one quarter of known oil, natural gas and coal reserves.
换一种表达方式：人类只可以燃烧和释放已知石油、天然气和煤储量的四分之一。
Put another way: humanity can only afford to burn and vent less than one quarter of known oil, natural gas and coal reserves.
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