Effects of climate change on agriculture in the context of "Salmonella"

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⭐ Core Definition: Effects of climate change on agriculture

There are numerous effects of climate change on agriculture, many of which are making it harder for agricultural activities to provide global food security. Recent research has found that climate change is likely to exacerbate the existing environmental impacts of agriculture by lowering crop productivity, reducing the effectiveness of agrochemicals, increasing soil erosion and pest pressures, and thereby driving greater use of land, water and inputs.Rising temperatures and changing weather patterns often result in lower crop yields due to water scarcity caused by drought, heat waves and flooding. These effects of climate change can also increase the risk of several regions suffering simultaneous crop failures. Currently this risk is rare but if these simultaneous crop failures occur, they could have significant consequences for the global food supply. With a growing population and rapid urbanization, it is suggested that food production may increase by nearly 60% in the upcoming years. Verma, Krishnan (13 August 2024). "Climate change adaptation: Challenges for agricultural sustainability". Wiley. Wiley. Retrieved 30 October 2025.. Many pests and plant diseases are expected to become more prevalent or to spread to new regions. The world's livestock are expected to be affected by many of the same issues. These issues range from greater heat stress to animal feed shortfalls and the spread of parasites and vector-borne diseases.

The increased atmospheric CO2 level from human activities (mainly burning of fossil fuels) causes a CO2 fertilization effect. This effect offsets a small portion of the detrimental effects of climate change on agriculture. However, it comes at the expense of lower levels of essential micronutrients in the crops. Furthermore, CO2 fertilization has little effect on C4 crops like maize. On the coasts, some agricultural land is expected to be lost to sea level rise, while melting glaciers could result in less irrigation water being available. On the other hand, more arable land may become available as frozen land thaws. Other effects include erosion and changes in soil fertility and the length of growing seasons. Bacteria like Salmonella and fungi that produce mycotoxins grow faster as the climate warms. Their growth has negative effects on food safety, food loss and prices.

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In this Dossier

Effects of climate change on agriculture in the context of Breadbasket

The breadbasket of a country or of a region is an area which, because of the richness of the soil and/or advantageous climate, produces large quantities of wheat or other grain. Rice bowl is a similar term used to refer to Southeast Asia; California's Salinas Valley is sometimes referred to as America's salad bowl. Such regions may be the subject of fierce political disputes, which may even escalate into full military conflicts.

Breadbaskets have become important within the global food system by concentrating global food-production in a small number of countries and, in countries such as India, in small geographic regions. As climate change increases weather variability around the world, the likelihood of multiple breadbaskets failing at a time increases dramatically. The 2022 food crises has been in part facilitated by a series of failures in key breadbasket regions, and the 2022 Russian invasion of Ukraine has created significant potential disruption of the respective breadbasket regions that are important for global wheat and oil seed production.

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Effects of climate change on agriculture in the context of Regenerative agriculture

Regenerative agriculture is a conservation and rehabilitation approach to food and farming systems. It focuses on topsoil regeneration, increasing biodiversity, improving the water cycle, enhancing ecosystem services, supporting biosequestration, increasing resilience to climate change, and strengthening the health and vitality of farm soil.

Regenerative agriculture is not a specific practice. It combines a variety of sustainable agriculture techniques. Practices include maximal recycling of farm waste and adding composted material from non-farm sources. Regenerative agriculture on small farms and gardens is based on permaculture, agroecology, agroforestry, restoration ecology, keyline design, and holistic management. Large farms are also increasingly adopting regenerative techniques, using "no-till" and/or "reduced till" practices.

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LINKED FROM (PARENTS)
← Breadbasket ← Regenerative agriculture
LINKS TO (CHILDREN)
Climate change → Food security → Water scarcity → Drought → Heat wave → Flood → Effects of climate change → Crop failure → Pest (organism) → Plant pathology → Livestock → Heat stress → Animal feed → Parasite → Vector-borne disease → Carbon dioxide in Earth's atmosphere → Fossil fuel → CO2 fertilization effect → Micronutrient → C4 carbon fixation → Maize → Sea level rise → Retreat of glaciers since 1850 → Irrigation → Arable land → Permafrost → Soil fertility → Salmonella → Fungus → Mycotoxin → Food safety → Food loss and waste → Food prices →