The second cloud over tropical certification schemes, as Wal-Mart may find, is doubt about their reliability.

热带地区认证系统的第二个消极因素是企业的可靠性将受到质疑，正如沃尔玛可能会发现的。

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Some comparative studies of forest certification schemes have been made at home and abroad, but little about certification standards.

国内外已经开展了一些关于森林认证体系的比较研究工作，但完全针对认证标准所做的比较研究很少。

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One recommendation in the report is to establish wildlife farms; another is certification schemes that help poor people to advertise the sustainability of their wares.

其中一个在TRAFFIC报告中所提及的建议是建立一个野生动植物农场；而另一个则是建议通过一项认证计划帮助那些贫穷人口对其产品的可持续性进行宣传。

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The second cloud over tropical certification schemes, as Wal-Mart may find, is doubt about their reliability.

ECONOMIST: Western consciences can do only so much to conserve forests

Mr Kingsley added that his company was "likely" to sign up to Microsoft's certification schemes.

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In messy countries like Cameroon, certification schemes get corrupted.

ECONOMIST: Western consciences can do only so much to conserve forests