On a worldwide basis, global warming may benefit the mid- to high latitude zones for agriculture (for a small change of temperature of 1-3°C), whereas low latitudes, semi-arid and tropical areas will have much reduced crop and livestock yields.
The impact of climate change on potential crop production (e.g. based on 2xCO2 and general circulation model, GCM) reveals that Africa and Latin America are more likely to have negative consequences. whereas for Europe, United States, Canada and Asia the results range from severe negative effects to large potential increase in yield.
The rise of temperature may reduce production of agriculture and livestock in low latitudes, semi-arid and tropical areas (e.g. Asia and Africa). Essentially all quantitative assessments show that climate change will adversely affect food security in the sub-Saharan Africa and South Asia
Reference
https://www.researchgate.net/publication/261178054_Climate_Change_and_Agricultural_food_production_Impacts_vulnerabilities_and_remedies
Book Climate Change and Agricultural Food Production: Impacts, Vu...
Yes, definitely. Food and agriculture production is the most worst affected sector. Change in climate will invite floods and droughts. Even change in communication to different areas also, may lead to crisis among plenty. If other details are needed I can share with you other materials.
The climate change has variable impact on food production at varying latitude. Higher temperatures in general hasten plant maturity in annual species, thus shortening the growth stages during which pods, seeds, grains or bolls can absorb photosynthetic products. This is one reason yield are lower in the tropics. Because crop yield depends on both the rate of carbohydrate accumulation and the duration of the filling periods, the economic yields of both temperate and tropical crops grown in a warmer and CO2-enriched environment may not rise substantially above present levels, despite increases in net photosynthesis. Because temperature and tropical regions differ in both current temperature and the temperature rise predicted for climate change, the relative magnitudes of combined CO2 and temperature effects will likely be different in the different regions. In the mid-latitudes, higher temperatures may shift biological process rates toward optima, and beneficial effects are likely to ensue. Increases in temperature will also lengthen the frost-free season in temperate regions, allowing for longer duration crop varieties to be grown and offering the possibility of growing successive crops (moisture conditions permitting). In tropical locations where increased temperatures may move beyond optima, negative consequences may dominate. Both the mean and extreme temperatures that crops experience during the growing season will change in both temperate and tropical areas. Extreme temperatures are important because many crops have critical thresholds both above and below which crops are damaged
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