The environmental challenges are significant but the efforts made by the Tanzania National Park Authority seem to be paying off.

环境挑战是巨大的，但坦桑尼亚国家公园管理局所做的努力似乎正在得到回报。

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There are also environmental challenges.

另外还会有环境方面的问题。

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Our generation's great environmental challenges can be met with similar resolve and technological focus.

我们这一代面对的重大环境挑战得到了类似的解决和技术关注。

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The gathering is also expected to address environmental challenges and the need to develop alternatives to fossil fuels.

VOA: standard.2009.04.15

(OMITTED) Remais,an assistant professor at Emory University's Rollins School of Public Health in Atlanta, He says the growing economy is fueling environmental risks such as air pollution and chemical toxins, while age-old environmental challenges remain.

VOA: standard.2010.04.07

So this is a timely opportunity to remind the world how agricultural biodiversity can improve productivity and nutrition,enhance livelihoods, respond to environmental challenges and deliver food security, Last July,the G8 summit in L'Aquila,Italy, issued a statement saying, There is an urgent need for decisive action to free humankind from hunger and poverty.

VOA: standard.2010.03.29

This means building a flexible education system where children practice solving social and environmental challenges.

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In 2010, the environmental challenges we face are global and call for new solutions.

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Marine Protected Areas help recover marine environments in order to provide natural solutions to critical environmental challenges.

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