The US Green Building Council, for its part, is helping by expanding its energy-efficiency rating system from commercial properties to homes.

就此，美国绿色建筑商会(US Green Building Council)决定将一套用于商用物业耗能效率评估系统扩大到对民用住宅的评估，以帮助解决问题。

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As each company seeks to be greener than the next, so demand is growing to get buildings certified by the Leadership in Energy Efficiency and Design programme (LEED), America's biggest green rating system, run by the not-for-profit Green Building Council.

ECONOMIST: A green rating system for America��s homes