The world's coal supply suggests reserves may be vastly overestimated and we could be facing an unprecedented global energy crisis, according to a U. S. expert.
美国科学家提出，世界可用煤炭储量被大大高估了。人类很可能正面临一场前所未有的能源危机。
The world's coal supply suggests reserves may be vastly overestimated and we could be facing an unprecedented global energy crisis, according to a U. S. expert.
美国科学家提出，世界可用煤炭储量被大大高估了。人类很可能正面临一场前所未有的能源危机。
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