火炉之城

哥本哈根——现在应该可以看到全球变暖最终将会给这个星球带来怎样的后果了。要想知道未来会是怎样一种景象,我们只须到北京、雅典、东京,或者,事实上,地球上几乎任何一个城市去看一看就明白了。

世界上绝大多数的城区在过去几十年间都经历了远比因为全球变暖而导致未来百年间气温预计将提高2.6℃的幅度高出很多的气温的上升。

这一点很容易理解。在纽约的一个大热天里,当地人躺在中央公园的绿地上,而不是沥青地面的停车场或混凝土路面的人行道上。砖头、混凝土和沥青这些建造城市的材料比农村的植被从太阳那儿吸收了更多的热量。

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