可持续能源之路

纽约—对能源未来的最安全赌注是下注于低碳能源供给。如今,全世界八成左右的一次能源是碳基能源:煤、石油和天然气。我们需要在本世纪中叶转向非碳或低碳能源。怎样转、何时能转成,这是个大问题。

低碳一次能源有三种选择:可再生能源,包括风能、太阳能、地热、水电和生物能;核能;以及碳捕捉和碳储存,即用化石燃料生产能源,但限制二氧化碳发生量,并将碳安全地储存于地下。

世界需要转向低碳能源,有三条刻不容缓的原因。首先,二氧化碳水平的升高正在让海洋变酸。照目前的发展速度,我们会毁掉大量海洋生物,严重破坏我们赖以生存的食物链。

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