how climate change impacts food production?
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Global warming affects agriculture in a number of ways, including through changes in average temperatures, rainfall, and climate extremes (e.g., heat waves); changes in pests and diseases; changes in atmospheric carbon dioxide and ground-level ozone concentrations; changes in the nutritional quality of some foods; and ...
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But scientists say that the impacts of climate change—higher temperatures, extreme weather, drought, increasing levels of carbon dioxide and sea level rise—threaten to decrease the quantity and jeopardize the quality of our food supplies.
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Climate change is expected to worsen the frequency, intensity, and impacts of some types of extreme weather events. For example, sea level rise increases the impacts of coastal storms and warming can place more stress on water supplies during droughts.
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Climate change is modifying fish distribution and the productivity of marine and freshwater species. ... The effect of sea level rise means that coastal fishing communities are significantly impacted by climate change, while changing rainfall patterns and water use impact on inland freshwater fisheries and aquaculture.
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Climate change affects animal species in the following ways: They have to adapt to the changing climate – which has made their habitats less comfortable, and sometimes even inhospitable. They're dealing with increases in water, air, and solid waste pollution that affects the food they eat and the habitats they live in.
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Answer: Climate change is affecting the habitats of several species, which must either adapt or migrate to areas with more favourable conditions. Even small changes in average temperatures can have a significant effect upon ecosystems.
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Food production contributes, for example, to climate change, eutrophication and acid rain, as well as the depletion of biodiversity. It is also a considerable drain on other resources, such as nutrients, land area, energy, and water.
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The effects of climate change could be devastating to vulnerable coastal and marine areas as well as to the function and structure of their ecosystems. Increasing sea level (1,7 mm/year) changes the shape of coastlines, contributes to coastal erosion and leads to flooding and more underground salt-water intrusion.
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At the same time, extreme temperatures, a decrease in water availability and changes to soil conditions will actually make it more difficult for plants to thrive. Overall, climate change is expected to stunt plant growth.
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Global warming could lead to an increase in pest insect populations, harming yields of staple crops like wheat, soybeans, and corn. While warmer temperatures create longer growing seasons, and faster growth rates for plants, it also increases the metabolic rate and number of breeding cycles of insect populations.
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Higher temperatures, an increased frequency of storms, sea level rise, and other effects of climate change are likely to affect fish physiology and ecology as well as the operation of aquaculture. Some fish species, such as catfish, may grow more rapidly with higher temperatures but be more vulnerable to disease.
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Amount of pests will increase, since warmer temperatures produce more generations of pests per year. Agriculture responds to weather; increasing floods and droughts will reduce agricultural production (aka food availability). ... 30-40% wasted food. Developed countries waste majority of food at home and municipal.
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Climate change also alters the life cycles of plants and animals. For example, as temperatures get warmer, many plants are starting to grow and bloom earlier in the spring and survive longer into the fall. Some animals are waking from hibernation sooner or migrating at different times, too.
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Global warming affects evapotranspiration—the movement of water into the atmosphere from land and water surfaces and plants due to evaporation and transpiration— which is expected to lead to: Increased drought in dry areas.
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Climate change drives changes in marine ecosystems that affect fisheries' productivity and food security. ... These changes are altering the distribution, abundance and health of commercial fish species, and the marine ecosystems on which they depend.
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Agriculture contributes to climate change At every stage, food provisioning releases greenhouse gases into the atmosphere. ... A significant decline in livestock numbers, more efficient application of fertilisers, and better manure management reduced the EU's emissions from agriculture by 24% between 1990 and 2012.
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Crop Changes. Climate change may actually benefit some plants by lengthening growing seasons and increasing carbon dioxide. Yet other effects of a warmer world, such as more pests, droughts, and flooding, will be less benign. ... Under the HadGEM2 model, corn farmers will see crops decline by nearly 16 percent.