Greening the Concrete Jungle; Cities and Climate Change  

Oleh:

[s.n]

Jenis: Article from Bulletin/Magazine
Dalam koleksi: The Economist (http://search.proquest.com/) vol. 400 no. 8749 (Sep. 2011), page 33-34.
Topik: Cities; Environmental Protection; Green Buildings; Greenhouse Gases; Emissions Control

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Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.67 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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There are many places in Illinois where you expect to find a prairie. The roof of City Hall in Chicago is not among them. Yet there it is--20,000 square feet (almost half an acre) of shrubs, vines and small trees, 11 storeys above LaSalle Avenue. Planted in 2000, City Hall's green roof reduces the amount of energy needed to cool the building in the summer; captures water during rainstorms, thus reducing the amount of water flowing into Chicago's already overtaxed sewers; and combats the urban heat island effect, which makes cities warmer than nearby rural areas. Large as it is, City Hall's roof accounts for a small proportion of Chicago's total green-roof space. And those roofs are just one part of Chicago's Climate Action Plan (CCAP), which was launched in September 2008.

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