Marco Polo noted in 1272 as he passed by Baku, on the Caspian sea, that oil lamps were common.

1272年，马卡波罗在通过里海的巴库时发现油灯在那里很普遍。

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External critics have frequently argued that this cannot be substantiated by firm evidence and say the world has already passed its peak in oil production.

外界批评人士经常辩论说，有确凿的证据显示，这一预测毫无依据，并且表示，世界石油产量早已跨过了高峰期。

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External critics have frequently argued that this cannot be substantiated by firm evidence and say the world has already passed its peak in oil production.

外界批评人士经常辩论说，有确凿的证据显示，这一预测毫无依据，并且表示，世界石油产量早已跨过了高峰期。

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