大愛新聞_威尼斯的眼淚_水都威尼斯下沉 百年下沉28公分

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Uploaded by on Jun 17, 2009

威尼斯、一個全球知名旅遊景點,也是一個在與大自然抗衡下、漸漸在下沉的城市。今天威尼斯的眼淚系列報導,帶您探討造成威尼斯陸地不斷下沉的原因。這個數據先提供給您,水­都威尼斯在最近的一百年內已往下沉了28公分,主要包括全球暖化導致的海平面上升了11公分;以及長期超抽地下水導致地層下陷17公分,加起來28公分。不要小看這28公­分,威尼斯政府得必須不斷填高路面,還得面臨淹水範圍逐年增加的危機。科學家提出一套提高城市的做法,運用海水、把它抽出來灌入到地層裡,提高整座城市;十年下來,平均可­以提高三十公分,但這都僅限於紙上談兵。

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