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Ocean salinity, early-life health, and adaptation
In: Journal of environmental economics and management. Academic Press: New York,. ISSN 0095-0696; e-ISSN 1096-0449
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| Trefwoorden |
Adaptation
Bangladesh
Climate change
Bangladesh [Marine Regions]
Marien/Kust |
| Author keywords |
Ocean salinity; Early-life health; Height-for-age; Weight-for-height; Weight-for-age; Children |
| Auteurs | | Top |
- Guimbeau, A.
- Ji, X.J.
- Long, Z.
- Menon, N.
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| Abstract |
We study the effects of in utero exposure to climate change induced high ocean salinity levels on children's anthropometric outcomes. Leveraging six geo-referenced waves of the Bangladesh Demographic and Health Surveys merged with gridded data on ocean salinity, ocean chemistry and weather indicators (temperature, rainfall and humidity) from 1993 to 2018, we find that a one standard deviation increase in in utero salinity exposure leads to a 0.11 standard deviation decline in height-for-age. Effects on weight-for-height and weight-for-age for a similar magnitude increase in salinity are 0.13 and 0.15 standard deviations, respectively. Analyses of parental investments and health-seeking behaviors demonstrate that compensating actions along these dimensions to attenuate the detrimental effects of salinity are few and restricted to poorer households. Using satellite-sourced datasets on agriculture and land-use, we find that increasing salinity constrains farmers' land use choices, restricting cultivation in the more profitable seasons which leads to lower agricultural potential. In particular, the effects of salinity on child health originate in areas with lower agricultural intensity caused by the progressive salinization of productive lands. These results highlight the climate change related costs of environmental insults on early-life health outcomes in vulnerable populations. |
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