美国哥伦比亚大学国际地球科学信息网络中心提供不同来源(包括：美国人口局、世界银行、世界资源研究所、美国宇航局)数据的服务入口，在这里可以查看当月的PM2 5数据，而且是全球的监控数据。l31一点就转

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　　在美国哥伦比亚大学国际地球科学信息网络中心可获取的数据集包括：人口统计，社会经济和可持续发展指标，资源信息，臭氧损耗数据，紫外线暴露与人类健康发现，气候变化数据。此外，网站还提供了提供了150多个环境条约的文本链接。l31一点就转

　　CIESIN’s mission is to provide access to and enhance the use of information worldwide, advancing understanding of human interactions in the environment and serving the needs of science and public and private decision making.l31一点就转

　　The Center for International Earth Science Information Network (CIESIN) was established in 1989 as an independent non-governmental organization to provide information that would help scientists, decision-makers, and the public better understand the changing relationship between human beings and the environment. In 1998, CIESIN became a center withinthe Columbia University Earth Institute. From its offices at Columbia’sLamont-Doherty Earth Observatorycampus in Palisades, New York, CIESIN continues to focus on applying state-of-the-art information technology to pressing interdisciplinary data, information, and research problems related to human interactions in the environment.l31一点就转

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　　Mailing Address and info:l31一点就转

　　61 Route 9W, PO Box 1000l31一点就转

　　Palisades, NY 10964 USAl31一点就转

　　Tel.: +1(845)365-8988l31一点就转

　　Fax: +1(845)365-8922l31一点就转

　　Email:info@ciesin.columbia.edul31一点就转