The Rainforest Alliance has come up with a more detailed definition.

对此，雨林联盟有更详细的定义。

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The Rainforest Alliance label only guarantees that 30% of coffee beans in a product have been certified.

雨林联盟标签仅仅保证了产品中30%的咖啡豆是经过认证的。

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The Rainforest Alliance, an international nonprofit, works with farmers and producers in tropical areas to ensure they are practicing environmentally sustainable and socially just methods.

雨林联盟是一个国际化的公益性组织，他们和热带地区的农民和生产者一起工作，以确保他们使用环境可承受并有利于社会公义的方式。

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In some cases, this standard might be provided by an independent scheme, such as the Rainforest Alliance.

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Again, the Rainforest Alliance does things differently.

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As part of our efforts to educate consumers about responsible travel choices, TIES, along with several other global institutions and organizations such as the United Nations Environmental Programme, United Nations Foundation, Rainforest Alliance and the United Nations World Tourism Organization, has been working on developing a global process evaluating the effectiveness of certification mechanisms that clearly set apart sustainable from non-sustainable forms of tourism. (See: www.sustainabletourismcriteria.org for more information.).

CNN: The International Ecotourism Society statement