It represents nonprofit and for-profit organizations working toward goals of social change and environmental activism.

VOA: special.2011.06.03

It will change energy, environmental science.

它将会改变能源，环境科学。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

because we haven't passed new environmental laws to help with climate change yet.

因为我们目前还没有通过应对气候变化的新的环境法。

全球变暖与国力 - SpeakingMax英语口语达人

But a new study says, most continue to focus on consumption, And those values will have to change to avoid more environmental damage.

VOA: standard.2010.01.23

Environmental and fisheries experts say damming the Mekong will change some of their traditional ways.

VOA: standard.2010.01.11