From Sea to Shore: The Impact of Ocean Acidification on Child Health

Alex Armand and Ivan Kim Taveras

No 15680, CEPR Discussion Papers from Centre for Economic Policy Research

Abstract: Since the Industrial Revolution, ocean water acidity has risen by 26% due to anthropogenic emissions—a process known as ocean acidification—posing a risk for marine life and the communities depending on it. This paper examines the consequences of ocean acidification for child health, using data from coastal regions in 36 low- and middle-income countries from 1972 to 2018, encompassing 41% of the world’s coastal population. Leveraging short-term exogenous shifts in ocean acidity near human settlements for identification, we find that prenatal exposure to higher water acidity significantly raises the risk of death in the first months of life and impacts early childhood development. We show evidence consistent with these effects being associated with maternal malnutrition, as increased acidity reduces catches for small-scale fisheries, increasing seafood prices and reducing consumption of crucial nutrients. Our findings indicate limited adaptation to these impacts. We estimate that, absent intervention, ocean acidification could contribute to as many as 77 million neonatal deaths in this region by 2100—a consequence that should not be ignored in the projected cost of climate change.

Keywords: Ocean; Acidification; Health; Mortality; Development. (search for similar items in EconPapers)
JEL-codes: I15 O10 Q20 Q54 (search for similar items in EconPapers)
Date: 2021-01
New Economics Papers: this item is included in nep-agr, nep-env and nep-evo
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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