The effort, reaching its 10th anniversary this year, has led to a 24 percent cut in emissions, according to surveys by a professor of environmental sustainability who lives here.

根据住在这里的一位研究环境持续性的教授所做的调查，十年下来，他们的努力已经使当地碳排放减少了24%。

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This paper surveys the stability of international environmental agreements(IEAs)in a game theoretic way.

本文采用博弈论方法研究国际环境协议的稳定性问题。

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East Sussex County Council said environmental work, including archaeological surveys and creating new habitats for wildlife, began last July and the road was "crucial" to help regenerate the local economy.

BBC: Tree protester

East Sussex County Council said environmental work, including archaeological surveys and creating new habitats for wildlife, began in July and the road was "crucial" to help regenerate the local economy.

BBC: Bexhill to Hastings link road: Three protesters charged

Environmental groups, like Greenpeace, point to surveys ranking Apple below other computer makers, such as Dell and Hewlett-Packard Co.

WSJ: How Green Is Apple?