World resources, 2005 : the wealth of the poor : managing ecosystems to fight poverty / Wealth of the poor : managing ecosystems to fight poverty Managing ecosystems to fight poverty World Resources Institute. United Nations Environment Programme. United Nations Development Programme. World Bank. Natural resources Environmental health. Environmental degradation. Human beings 333 WOR 2005 A068 Or. Includes index. Washington, D.C. World Resources Institute, 2005. 2005. Text x, 254p. : http://www.wri.org