In Singapore, the Semakau Landfill, contains more than 700 types of plants and animals. The Semakau Landfill is a $360 million facility and has a 4.4 mile long sea wall that is consisted of sand, rock, clay, and a geomembrane of polyethylene which outlines the island to prevent leakage. Trash from the mainland makes its way here, and the wet ash is then emptied into "cells" or pits which are then eventually covered with dirt to form palm trees.
Shockingly, the Semakau Landfill is the only active landfill that gets waste while having a successful ecosystem. The Semakau Landfill has created an innovation that solves the need of solid waste management. Unfortunately, there is a little but most certainly real risk that the waste could potentially leak into the ocean. Semakau Landfill holds a significant amount of importance, since if landfill space ceases to exist, everyone is in trouble, therefore stating why this place is so critical.
http://www.nytimes.com/2011/08/16/science/16landfill.html?_r=2&no_interstitial&emc=Google-Earth
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