Global warming and extreme weather events can affect food supply chains, causing widespread adverse effects on incomes and the availability of food and nutrients.
Rural communities would be more severely affected, while more affluent would be in a better position to address such food supply crises.
This is the conclusion of a new study led by the University of Sydney (Australia) and published this Thursday in the journal Nature Food.
The authors modeled the far-reaching effects of climate change and extreme weather events on Australia’s food systems and supply chains, identifying potential cascading impacts including job and income loss, as well as reduced food availability. Nutrients and diet quality.
The study also noted that weather events such as cyclones, floods, wildfires and heat waves can affect surrounding areas by limiting the availability of food and employment. Its impact can be felt in distant regions due to the complex interconnection of modern supply chains.
The authors also looked at how a reduction in the food supply impacts non-food sectors such as transportation and services.
“Climate change can directly affect our economy, livelihoods and health. Disruptions caused by extreme weather events can affect regions and regions, leading to job and income loss and food availability,” said Arunima Malik, Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) ) says the lead author.
loss of employment and income
Manfred Lenzen of the University of Sydney indicates that “what happens at the global level also happens at the local level”. “Everyone is affected by climate change, even if they are not in areas directly affected by extreme weather, and vulnerable people are most affected,” he says.
The model also found that such shocks could lead to a local increase in food prices and a decline in food quality, with poor households performing worse than their wealthier counterparts, even in the same region. In too.
David Raubenheimer of the Charles Perkins Center at the University of Sydney notes that “disruptions in the food supply can negatively affect diet quality by reducing the variety that contributes to a balanced diet, shifting the diet toward processed foods.” Unhealthy that has a long shelf life.” “It disproportionately affects vulnerable groups, who do not have the means to pay the rising prices of scarce fresh food,” he says.
The shocks to food production will affect job and income losses not only in food supply chains, but also in the transportation and service sectors.
“Cascading effects resulting from continued climate variability and more frequent extreme weather events, not only disrupt supply chains, but can also trigger zoonotic diseases, foodborne epidemics, and widespread socio-demographic stresses, including interstate migration and social unrest is involved. It is important that we understand these effects so that we can build a more resilient society,” concluded Malik.