To the constructing of cities, courtyard greening has great effects on environment, society, economy and civilization.

庭院绿化为城市建设提供了显著的生态效益、社会效益和经济文化效益。

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Yes, the talk this year will be about greening the global economy.

FORBES: 2012: The Year of Talking Green

There was "strong support for the green economy", he argued, which represented "a major achievement, recognising that in the long term greening our economies should not conflict with growing them".

BBC: Clegg laments outcome of Rio+20 summit