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Temperature and precipitation affect the water fetching time burden in Sub-Saharan Africa

Author

Listed:
  • Abigail Harvey Paulos

    (University of California)

  • David A. Carroll

    (Tufts University)

  • Julie Powers

    (University of California)

  • Jake Campolo

    (Farmer’s Business Network)

  • Daehyun Daniel Kim

    (University of California)

  • Avery Cohn

    (Tufts University)

  • Amy J. Pickering

    (University of California
    Chan Zuckerberg Biohub
    Berkeley)

Abstract

In Sub-Saharan Africa (SSA), over 75% of households lack on-premises water access, requiring residents to spend time walking to collect water from outside their homes – a time burden that falls disproportionately on women and girls. Climate change is predicted to alter precipitation and temperature patterns in SSA, which could impact household water access. Here, we use spatial first differences to assess the causal effects of weather on water fetching walk time using household survey data (n = 979,759 observations from 31 countries) merged with geo- and temporally-linked precipitation and temperature data over time periods ranging from 7 to 365 days. We find increases in precipitation reduce water fetching times; a 1 cm increase in weekly rainfall over the past year decreases walking time by 3.5 min. Higher temperatures increase walk times, with a 1°C increase in temperature over the past year increasing walking time by 0.76 min. Rural household water fetching times are more impacted by recent weather compared to urban households; however, electricity access in rural communities mitigates the effect. Our findings suggest that future climate change will increase the water fetching burden in SSA, but that co-provision of electricity and water infrastructure may be able to alleviate this burden.

Suggested Citation

  • Abigail Harvey Paulos & David A. Carroll & Julie Powers & Jake Campolo & Daehyun Daniel Kim & Avery Cohn & Amy J. Pickering, 2025. "Temperature and precipitation affect the water fetching time burden in Sub-Saharan Africa," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-58780-9
    DOI: 10.1038/s41467-025-58780-9
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    References listed on IDEAS

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