Environmental concerns such as awareness of how deforestation impacts climate change and the effects of toxic finishes on the air inside homes have led furniture buyers to demand green furniture.

由于环境问题日益严重，人们在购买家具时关于环境方面的考虑也越来越多了，诸如森林的滥砍乱伐会导致全球气候变暖，非绿色家具在制造时对环境的破坏大，二氧化碳排放量多，一些不安全家具放置于室内时还会释放有毒气体，这些因素都导致了家具购买者会选择绿色家具。

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Students will learn about environmental concerns such as global warming and population growth, as well as the methods for managing and protecting the environment.

同学们将会学习到例如全球变暖和人口增长等环境问题，以及面对这些问题的解决方案和保护政策。

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But critics of shale gas point to environmental concerns such as high water use and possible water contamination, the release of methane and, to a lesser extent, earth tremors caused by drilling.

BBC: US oil production 'to jump by a quarter by 2014'

Environmental issues such as clean air and water are major concerns of voters as this year's elections approach, according to a poll conducted for the League of Conservation Voters.

CNN: Environment is crucial issue for voters, poll shows

The main obstacles cited by the energy executives surveyed speak for themselves: opposition to expanded drilling in places such as the Arctic National Wildlife Refuge (cited by 33%), environmental concerns (16%) and a lack of investment in energy due to low commodity prices (14%).

FORBES: U.S. Energy Independence in 15 Years?