Only a handful of homes are zero-carbon, however, and many designs are too expensive to merit mass production

然而只有少数家庭是零排放，许多设计太过昂贵，不值得大量生产。

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Near-zero-carbon nuclear power is popular with conservatives, while unproven CCS is meant to seduce the many coal states.

保守派中意几乎零二氧化碳排放的核能，而效果未知的CCS是为了获得煤炭大州的支持。

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The world's first zero-carbon city is being built in Abu Dhabi and is designed to be not only free of cars and skyscrapers but also powered by the sun.

阿布扎比正在建设世界首个无碳城，根据设计，城内禁止车辆，没有摩天大楼，而且全城依赖太阳能供应能源。

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Each town will have between 5, 000 and 20, 000 properties and must be "zero-carbon" overall.

BBC: Decision on 'eco-towns' delayed

The chancellor did indicate that the government would come forward with a plan for zero-carbon homes by May.

BBC: Green campaigners dismayed by Budget

Near-zero-carbon nuclear power is popular with conservatives, while unproven CCS is meant to seduce the many coal states.

ECONOMIST: The climate-change bill