Moves to cut carbon emissions in line with international targets have come under renewed strain since the nuclear crisis in Japan led some countries to shelve plans to use the technology.

减少碳气体排放以达到国际排放目标的行动最近陷入了僵局，原因是日本发生的核危机导致一些国家搁置利用核技术的计划。

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A wide field in Mattoon boasted easy access to a railway line, making delivery of the coal easy, and a sandstone substratum, apparently well suited for sequestering carbon dioxide.

广阔的马顿市拥有通往铁路线的便利交通，使运输煤更加便捷，同时下层砂岩土显然非常适合碳封存。

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"You go along a core and everything's the same, the same, the same, and then suddenly you pass this time line and the carbon chemistry is completely different," Dickens said.

“你偏离了核心，所有的东西都是一样的，突然间你过了时间轴，碳化学已经是完全不同了，”Dickens说。

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It now hosts the world's biggest carbon-trading exchange and has a profitable line in renewable-energy finance.

ECONOMIST: Renewable energy

Another is the way that, somewhat arbitrarily, 450 parts per million has been turned into a red line for the level of atmospheric carbon dioxide.

ECONOMIST: Climate change

In the materials group, Reliance Steel, one of the largest U.S. metals service centers, distributes a line of more than 100, 000 metal products, including carbon, alloy, stainless and specialty steel, aluminum, brass as well as copper products.

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