Artigo Acesso aberto Revisado por pares

Food production shocks across land and sea

2019; Nature Portfolio; Volume: 2; Issue: 2 Linguagem: Inglês

10.1038/s41893-018-0210-1

ISSN

2398-9629

Autores

Richard S. Cottrell, Kirsty L. Nash, Benjamin S. Halpern, Tomas A. Remenyi, Stuart Corney, Aysha Fleming, Elizabeth A. Fulton, Sara Hornborg, Alexandra S. Johne, Reg Watson, Julia L. Blanchard,

Tópico(s)

Marine Bivalve and Aquaculture Studies

Resumo

Sudden losses to food production (that is, shocks) and their consequences across land and sea pose cumulative threats to global sustainability. We conducted an integrated assessment of global production data from crop, livestock, aquaculture and fisheries sectors over 53 years to understand how shocks occurring in one food sector can create diverse and linked challenges among others. We show that some regions are shock hotspots, exposed frequently to shocks across multiple sectors. Critically, shock frequency has increased through time on land and sea at a global scale. Geopolitical and extreme-weather events were the main shock drivers identified, but with considerable differences across sectors. We illustrate how social and ecological drivers, influenced by the dynamics of the food system, can spill over multiple food sectors and create synchronous challenges or trade-offs among terrestrial and aquatic systems. In a more shock-prone and interconnected world, bold food policy and social protection mechanisms that help people anticipate, cope with and recover from losses will be central to sustainability. An integrated assessment of global crop, livestock and aquaculture production, and fisheries landings over 53 years shows how shocks created in one food sector can spill over into multiple sectors, and which regions are shock hotspots.

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