Named because it comes 20 years after the 1992 UN earth summit in the same Brazilian city, Rio+20 has been targeted by a group of businesses and investors that say both companies and investors benefit from doing long-term forecasts for shortages of energy, water and other resources.

由于距离1992年联合国地球峰会正好20年，加上开会地点仍在同一座巴西城市，所以这次大会被称为“里约+20峰会。此次峰会已成了一大批企业和投资者关注的目标，它们表示，对能源、水和其他资源的短缺情况进行长期预测，会令企业和投资者受益匪浅。

Their campaign has led to the inclusion of a section in the summit text that leaders are to agree by this Friday that says governments should develop a “model for best practice and facilitate action for so-called corporate sustainability reporting.

正由于它们的努力推动，领导人们将于周五前达成的峰会文件包括一项内容，即各国政府应当制定一个“最佳惯例样板，并为所谓的企业可持续性报告“提供便利。

One of the models cited by campaigners as an example is Denmark’s “report or explain requirement for large companies to either report on their behaviour or explain why not.

支持者举了丹麦的例子。该国的“报告或解释规定要求大企业或者汇报它们的行为或者解释它们为什么不采取行动的原因。

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