| Silver bullet or fools' gold?: a global review of markets for forest environmental services and their impact on the poor N Landell-Mills, IT Porras International Institute for Environment and Development 40, 236-250, 2002 | 1695* | 2002 |
| How can market mechanisms for forest environmental services help the poor? Preliminary lessons from Latin America M Grieg-Gran, I Porras, S Wunder World development 33 (9), 1511-1527, 2005 | 723 | 2005 |
| All that glitters: A review of payments for watershed services in developing countries IT Porras IIED, 2008 | 360 | 2008 |
| The social impacts of payments for environmental services in Costa Rica: a quantitative field survey and analysis of the Virilla watershed M Miranda, IT Porras, ML Moreno Iied, 2003 | 302 | 2003 |
| Diarrhoea and effects of different water sources, sanitation and hygiene behaviour in East Africa JK Tumwine, J Thompson, M Katua‐Katua, M Mujwajuzi, N Johnstone, ... Tropical Medicine & International Health 7 (9), 750-756, 2002 | 272 | 2002 |
| Drawers of water II: 30 years of change in domestic water use & environmental health in east Africa. Summary J Thompson Iied, 2001 | 270 | 2001 |
| Learning from 20 years of payments for ecosystem services in Costa Rica I Porras, DN Barton, M Miranda, A Chacón-Cascante International Institute for Environment and Development., 2013 | 186 | 2013 |
| Waiting at the tap: changes in urban water use in East Africa over three decades J Thompson, IT Porras, E Wood, JK Tumwine, MR Mujwahuzi, ... Environment and Urbanization 12 (2), 37-52, 2000 | 167 | 2000 |
| Payments for Ecosystem Services as a Policy Mix: Demonstrating the institutional analysis and development framework on conservation policy instruments DN Barton, K Benavides, A Chacon‐Cascante, JF Le Coq, MM Quiros, ... Environmental Policy and Governance 27 (5), 404-421, 2017 | 73 | 2017 |
| Sanitation and hygiene in urban and rural households in East Africa J Tumwine, J Thompson, M Katui-Katua, M Mujwahuzi, N Johnstone, ... International journal of environmental health research 13 (2), 107-115, 2003 | 72 | 2003 |
| Linking biodiversity conservation and poverty reduction: de‐polarizing the conservation‐poverty debate D Roe, EY Mohammed, I Porras, A Giuliani Conservation Letters 6 (3), 162-171, 2013 | 71 | 2013 |
| Monitoring payments for watershed services I Porras, B Alyward, J Dengel by IIED, 2013, 2013 | 68 | 2013 |
| Fair and green?: social impacts of payments for environmental services in Costa Rica I Porras IIED, 2010 | 64 | 2010 |
| Modifying national accounts for sustainable ocean development EP Fenichel, ET Addicott, KM Grimsrud, GM Lange, I Porras, B Milligan Nature Sustainability 3 (11), 889-895, 2020 | 58 | 2020 |
| Power, profits and payments for ecosystem services in Hilsa fisheries in Bangladesh: a value chain analysis I Porras, EY Mohammed, L Ali, MS Ali, MB Hossain Marine Policy 84, 60-68, 2017 | 58 | 2017 |
| Harnessing employment-based social assistance programmes to scale up nature-based climate action A Norton, N Seddon, A Agrawal, C Shakya, N Kaur, I Porras Philosophical Transactions of the Royal Society B 375 (1794), 20190127, 2020 | 56 | 2020 |
| Economic Incentives for Watershed Protection: A case study of Lake Arena, Costa Rica B Aylward, J Echeverría, AF González, I Porras, K Allen, R Mejías IIED, 1998 | 48 | 1998 |
| Forest and water policies. The need to reconcile public and science perceptions I Calder, JM Amezaga, B Aylward, J Bosch, L Fuller, K Gallop, A Gosain, ... Geologica Acta, 157-166, 2004 | 46 | 2004 |
| Valorando los servicios ambientales de protección de cuencas: consideraciones metodológicas I Porras Foro Regional Sistemas de Pago por Servicios Ambientales en Cuencas …, 2003 | 46 | 2003 |
| Is ecosystem-based adaptation effective? Perceptions and lessons learned from 13 project sites H Reid, XH Jones, I Porras, C Hicks, S Wicander, N Seddon, V Kapos, ... IIED Resea, 2019 | 42 | 2019 |
