http://cleantechnica.com/2012/10/20/green-roofs-and-green-walls-market-expected-to-surge-to-7-7-billion-by-2017/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Mon, 29 Dec 2014 02:41:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 http://cleantechnica.com/2012/10/20/green-roofs-and-green-walls-market-expected-to-surge-to-7-7-billion-by-2017/#comment-138624 Sun, 21 Oct 2012 06:47:00 +0000 http://cleantechnica.com/?p=44221#comment-138624 Pretty roof. But remember in half the world (the Dryland 47%), the rain harvested from hard roofs is more valuable. The only possible exception being the inner cities, where the green spaces could create the greater value.

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