| http://www.w3.org/ns/prov#value | - RESOURCES FOR THE FUTURE According to its website, ???RFF is a nonprofit and nonpartisan think tank located in Washington, DC that conducts independent research ??? rooted primarily in economics and other social sciences ??? on environmental and natural resource issues.??? (http://www.rff.org/about_rff/index.htm; accessed 8/6/03) ???RFF received $1,622,350 in 2001 and $1,859,985 in 2002 from corpo
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