What we need is a smart system of infrastructure equal to the needs of the 21st century a system that encourages sustainable communities with easier access to our jobs to our schools to our homes.

我们需要一个适应于21世纪的基础设施系统，能够鼓舞稳定社区，人们不认工作，上学或者回家都很便捷。

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Every aspect of the intelligent homes is environmentally sustainable from design, through construction and finally to its operation.

从设计、施工到最后使用，智能家庭的各方面都是环保的。

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Wynn Pritchard, director of training body Construction Skills Wales, said there needed to be a balance between building sustainable homes and the costs for house builders.

BBC: Wales

The proposals are more widely drawn and include powers over homelessness, more sustainable housing and second homes.

BBC: New bid on 'right-to-buy' powers

New surveys from IKEA US reveal that Americans are starting to take steps to keep their homes more sustainable by using LED bulbs, but are still learning about the benefits of LED lights.

ENGADGET: Ikea to sell only LED-based lighting by 2016, wants to be greener than your sofa bed