Global food insecurity and famine from reduced crop, marine fishery and livestock production due to climate disruption from nuclear war soot injection.

Autor: Xia L; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, USA. lilixia@envsci.rutgers.edu., Robock A; Department of Environmental Sciences, Rutgers University, New Brunswick, NJ, USA., Scherrer K; Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain.; Department of Biological Sciences, University of Bergen, Bergen, Norway., Harrison CS; Department of Ocean and Coastal Science, Center for Computation and Technology, Louisiana State University, Baton Rouge, LA, USA., Bodirsky BL; Potsdam Institute for Climate Impact Research, Potsdam, Germany.; World Vegetable Center, Tainan, Taiwan., Weindl I; Potsdam Institute for Climate Impact Research, Potsdam, Germany., Jägermeyr J; Potsdam Institute for Climate Impact Research, Potsdam, Germany.; NASA Goddard Institute for Space Studies, New York, NY, USA.; Center for Climate Systems Research, Columbia University, New York, NY, USA., Bardeen CG; National Center for Atmospheric Research, Boulder, CO, USA., Toon OB; Laboratory for Atmospheric and Space Physics, Department of Atmospheric and Ocean Sciences, University of Colorado, Boulder, CO, USA., Heneghan R; School of Mathematical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.
Jazyk: angličtina
Zdroj: Nature food [Nat Food] 2022 Aug; Vol. 3 (8), pp. 586-596. Date of Electronic Publication: 2022 Aug 15.
DOI: 10.1038/s43016-022-00573-0
Abstrakt: Atmospheric soot loadings from nuclear weapon detonation would cause disruptions to the Earth's climate, limiting terrestrial and aquatic food production. Here, we use climate, crop and fishery models to estimate the impacts arising from six scenarios of stratospheric soot injection, predicting the total food calories available in each nation post-war after stored food is consumed. In quantifying impacts away from target areas, we demonstrate that soot injections larger than 5 Tg would lead to mass food shortages, and livestock and aquatic food production would be unable to compensate for reduced crop output, in almost all countries. Adaptation measures such as food waste reduction would have limited impact on increasing available calories. We estimate more than 2 billion people could die from nuclear war between India and Pakistan, and more than 5 billion could die from a war between the United States and Russia-underlining the importance of global cooperation in preventing nuclear war.
(© 2022. The Author(s).)
Databáze: MEDLINE
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