Abstract
Using satellite data on deforestation and weather in Malawi and linking those datasets with household survey datasets, we estimate the causal effect of deforestation on access to clean drinking water. In the existing literature on forest science and hydrology, the consensus is that deforestation increases water yield. In this study, we directly examine the causal effect of deforestation on households’ access to clean drinking water. Results of the two-stage least-squares (2SLS) with cluster and time fixed-effect estimations illustrate strong empirical evidence that deforestation decreases access to clean drinking water. Falsification tests show that the possibility of our instrumental variable picking up an unobserved time trend is very unlikely. We find that a 1.0-percentage-point increase in deforestation decreases access to clean drinking water by 0.93 percentage points. With this estimated impact, deforestation in the last decade in Malawi (14%) has had the same magnitude of effect on access to clean drinking water as that of a 9% decrease in rainfall.
Funder
University of Tsukuba
Joint Japan/World Bank Graduate Scholarship Program
Publisher
Proceedings of the National Academy of Sciences
Reference35 articles.
1. Food and Agriculture Organization (2015) Global Forest Resources Assessment 2015: Main Report (United Nations, Rome).
2. Malawi Government (2010) Malawi State of Environment and Outlook Report: Environment for Sustainable Economic Growth (Environmental Affairs Department, Lilongwe, Malawi).
3. Trees, forests and water: Cool insights for a hot world;Ellison;Glob Environ Change,2017
4. Forests and hydrological services: Reconciling public and science perceptions;Calder;Land Use Water Resour Res,2002
5. A review of catchment experiments to determine the effect of vegetation changes on water yield and evapotranspiration
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