… Document begins: 55 4 How Can Markets for Ecosystem Services Benefit the Poor? Maryanne Grieg-Gran, … for Environmental Services: A Survey of Financing Options for Sustainable Natural Resource Management in Developing Countries. Danida … Forest Trends with World Resources Institute and the Katoomba Group: Washington, D.C. Mantua, U., Merlo, M., Sekot, W. and Welcker, B. …