The voluntary Property Assessed Clean Energy program encourages homeowners to install solar panels, upgrade insulation and take other steps to improve energy efficiency, Brown said.

布朗表示，房屋清洁能源计划鼓励房屋业主安装太阳能面板，升级隔热系统，采取其他措施来提高能源效率。

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Always clean up the storage area to be allocated to multiple threads when you run the program.

在运行程序时，经常清理将要分配给多个线程的存储空间。

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"This could be the breakthrough we've been looking for on clean cars," said David Friedman, research director of the clean vehicle program at the Union of Concerned Scientists.

“这可能就是我们清洁汽车研究的突破了，”忧思科学家联盟清洁汽车项目研究主任戴维·弗里德曼说。

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He says Iran must come clean about its nuclear program or face the consequences.

VOA: standard.2009.09.25

"I think unfortunately, 2012 really may well be the new normal, " said Daniel Lashof, director of the climate and clean air program at the Natural Resources Defense Council, a U.S. environmental group.

CNN: NOAA: 2012 broke U.S. heat records

One popular project under the so-called Clean Development Mechanism program is the destruction of hydrofluorocarbon gases.

FORBES: Magazine Article

In 2007, we expanded the program significantly with a grant from the World Bank with a clean water program that helps connect poor, rural communities to safe water systems.

FORBES: Business Model Innovation: East Meets West Delivers Sanitation Solutions at Scale