Others study the impact of human activity on Earth's environment and design methods to protect the planet.

另一些地球学家则研究人类活动对地球环境的影响，并制订出保护地球的措施。

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Studies on the impact of human activity on landscape pattern, biological habitat and resource distribution have been a very important field of landscape ecology.

研究人类活动的区域差异对景观结构的影响，探讨人类活动的强弱对生物生境和资源分布格局的干扰，成为景观生态学研究的一个重要方面。

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The Earth does not have an inexhaustible supply of resources, so every effort should be made to conserve resources and limit the impact of human activity on the planet.

地球上的资源并不是取之不尽、用之不竭的，所以我们应该尽全力保存资源，限制人类活动对地球的冲击。

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Across all of Africa the impact of human activity is clear - whether in the newly irrigated areas created by the waters of the Nile, turning huge areas of the desert around Egypt's lake Nasser green, or the urban sprawl of Dakar, across the Cap Vert peninsula in Senegal.

BBC: Atlas shows vanishing landscape

The draft curriculum for geography does not contain references to climate change but a section called "Earth science" in the chemistry syllabus says 11- to 14-year-olds should be taught about "the production of carbon dioxide by human activity and the impact on climate" and includes a section on "the efficacy of recycling".

BBC: Keep climate change lessons in curriculum, urge petitions