Prevalence of Undernourishment (PoU) in the World, 2005-2018.

Prevalence of Undernourishment (PoU) in the World, 2005-2018.

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Climate change is increasing the frequency of climate-related disasters, creating greater risks of hunger and the breakdown of food systems. The sustainability of our planet is currently a major concern for the global community and has been a central theme for a number of major global initiatives in recent years. Climate change has prevalent, multi...

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... acute and chronic nutritional problems Table 3, are associated with climate variability and change, its complex and involve different pathways [41,42] (regional water scarcity, salinization of agricultural lands, destruction of crops through events, disruption of food logistics through disasters, and increased burden of plant infectious diseases or pests [38]. Micronutrient deeiciencies arise from diminished dietary diversity which reduces overall food consumption. ...

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... The escalating impacts of climate change are dismantling global food systems and intensifying public health crises, with rising temperatures, erratic weather patterns, and extreme events destabilizing agriculture, deepening food insecurity, and amplifying health risks. Globally, over 900 million people are facing acute food insecurity, particularly in vulnerable regions, where livelihoods are becoming increasingly precarious (Lake et al., 2012;Sanober, 2023). Catastrophic floods in South Asia and prolonged droughts in Africa exemplify the escalating challenges, exacerbating economic fragility and pushing communities closer to collapse (Azeem et al., 2023;Delina et al., 2023;Moon et al., 2023). ...
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not available Asian Australas. J. Food Saf. Secur. 2025, 9(1), 1-4
... Furthermore, global warming negatively affects biodiversity [3]. In addition, damage to food supply systems has been noted [4]; furthermore, climate change has had a negative impact on economies, with reports of a 6.7% decrease in GDP per capita in some regions [5]. Thus, to stop global warming, countries worldwide are taking measures to reduce CO 2 emissions. ...
... Negative decoupling occurs when GDP growth is negative and when CO2 takes a larger value than the change in GDP growth. This condition is expressed in a mathematical equation in which the following three conditions are represented (4). ...
... Negative decoupling occurs when GDP growth is negative and when CO 2 takes a larger value than the change in GDP growth. This condition is expressed in a mathematical equation in which the following three conditions are represented (4). ...
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This study uses factor decomposition analysis from the extended framework of Kaya’s identity to determine the factors influencing CO2 emissions in 138 countries worldwide from 2019–2022. The results revealed that CO2 emissions decreased due to economic stagnation caused by COVID-19 from 2019–2020. From 2020–2021, CO2 emissions increased due to economic recovery and increased dependence on fossil energy. However, the timing of recovery varies with income level. In low-income countries, economic recovery progressed more from 2021–2022 than from 2020–2021, which was the opposite of the situation in developed countries. In terms of technological factors, carbon intensity was a factor in increasing emissions in high-income countries during the recovery period, whereas fossil dependency and energy efficiency were factors in increasing emissions in upper-medium- and lower-medium-income countries, respectively. The results of the decoupling analysis indicate that lower-medium-income countries tend to exhibit undesirable decoupling. Furthermore, from an analysis of the transition of decoupling states, it is necessary to reduce the carbon intensity and fossil fuel dependency to achieve a desirable decoupling relationship between CO2 and economic development.
... The most challenging factors of food security are due to increasing population, insufficient resources and rising needs. Climate change, diseases and reduced soil fertility rates caused by pests and pathogens can lead to unpredictable weather patterns, lower crop yields and economic losses (Naheed et al., 2023). GM crop cultivation has helped with feeding the worlds growing population. ...
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... Rising global population is repressing the prevailing non-renewable fossil sources and exhausting the reserved fuel reservoirs with the concomitant excessive carbon emission and pollution of freshwater bodies [1]. Skyrocketing global challenges include energy crises, pollution, wastewater management, and land degradation. ...
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... This climatic emergency includes an increase in the temperature (T°) of the Earth's surface and a rise in sea level, its acidification, melting of glaciers, an increase in tree cover loss due to fire, and many other changes in the biosphere (IPCC, 2022). Thus, climate change accelerated by multiple human activities (e.g., overpopulation, deforestation, and livestock increase) has caused several harmful consequences and effects on biodiversity, ecosystem services, food security, human health, and quality of life (Harvey et al., 2023;Naheed, 2023;Pecl et al., 2017;Ripple et al., 2022). However, the last Intergovernmental Panel on Climate Change (IPCC) (2022) report states that all these climate change effects worldwide disproportionately affect those who have historically contributed less to the crisis, such as countries in South America. ...
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... World population crossedbillions according to projections, now eight billion in 2023, subsequently increasing to 8.5 billion near 2030, will be 9.7 billion by 2050, and a total of 10.9 billion in 2100 [1].Also, more than 150 million people around world experienced hunger during 2020 as the COVID-19 pandemic approached,after remaining largely steady from 2014 to 2019, the overall incidence regarding malnutrition climbed to roughly 9.9 percentage in 2020 and the additional statistical uncertainty, between 720and 768 to 811 million people worldwide experienced hunger during 2021 [2,3].When an individual does not consume enough energy and nutrients to meet their needs for maintaining good health, they are said to be undernourished. In the following pages undernourishment will be used interchangeably [4]. ...
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Undernourishment seen prevalently all around the World, Initiation of Sustainable Developmental Goals (SDGs) by the UN's Economic and Social Affairs Department's 2030 Strategy encourages the prevention of undernourishment. The Food and Agriculture organization , focuses on this framework which contributes to the SDG target indicators established by all the member countries of the United Nations in 2015, which must be accomplished by 2030, to put an end to hunger and secure access to food for all people, especially the underprivileged and those in risky situations, including infants to have a safe, nourishing and sufficient diet throughout the year, But major problem in achieving this target is disturbance in food supply chain by various causes this makes the food unavailable to the target population and leads to the undernourished population increase. In this review the prevalence and various causes of undernourishment among different countries in world will be seen and focuses on the disruptions in food supply chain which has been a great challenge for achieving the target of zero hunger and possible solutions for the improvement of the supply chain with the help of social entities and its development is provided.
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In recent years, the discussion of climate change and its effects on the environment is one of the most important topics in studies and researches all over the world. One of the important effects of climate change in the world is the change in the conditions of food production and supply components, and finally endangering food security. The purpose of this research is to investigate and analyze the effect of climate change on the components involved in food security. In a part of this research, climate change and its effect on food security in Iran have been emphasized. The theoretical information of this research was extracted from the results of the research conducted in the field of the research topic and the method used to analyze the effect of climatic conditions and food security indicators was the DEMATEL matrix. The results showed that climate change affects the assets of the food system, including production, transportation, storage and processing, and its consequences can disrupt the status of available food and access to food. Finally, reducing access to resources and disrupting livelihoods and food security can lead to conflicts and conflicts between people locally. Also, the results show that many climatic factors have changed in recent years in the country. The increase in temperature, especially the night temperature, change in rainfall regime and decrease in rainfall in some areas, increase in intensity and duration of drought, lack of water resources, etc. are among the consequences of climate change and global warming in the country. The effect of climate change in the country can severely endanger activities, assets, investment and the food system in general. The impact of various factors such as sanctions in the field of finance and technology of the food system, the effect of the increase in exchange rates on imported goods and inputs, excessive withdrawal of water resources, etc. increase food. The impact of various factors such as sanctions in the field of finance and technology of the food system, the effect of the increase in the exchange rate on imported inputs and goods, and the indiscriminate withdrawal of water resources can increase the consequences and risk of climate change in the food security sector. Considering the climatic diversity and the factors involved in Iran's climate, the effects of climate change can also be locally different, so its effects on food security will also have a variable degree of risk.
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