scholarly journals Climate change, global food supply and risk of hunger

2005 ◽  
Vol 360 (1463) ◽  
pp. 2125-2138 ◽  
Author(s):  
Martin Parry ◽  
Cynthia Rosenzweig ◽  
Matthew Livermore
Keyword(s):  
Climate Change ◽  
Food Production ◽  
Climate Scenario ◽  
Climate Forcing ◽  
Special Report ◽  
Emissions Scenarios ◽  
Business As Usual ◽  
The Impact ◽  
Global Food ◽  
Global Food Supply

This paper reports the results of a series of research projects which have aimed to evaluate the implications of climate change for food production and risk of hunger. There are three sets of results: (a) for IS92a (previously described as a ‘business-as-usual’ climate scenario); (b) for stabilization scenarios at 550 and 750 ppm and (c) for Special Report on Emissions Scenarios (SRES). The main conclusions are: (i) the region of greatest risk is Africa; (ii) stabilization at 750 ppm avoids some but not most of the risk, while stabilization at 550 ppm avoids most of the risk and (iii) the impact of climate change on risk of hunger is influenced greatly by pathways of development. For example, a SRES B2 development pathway is characterized by much lower levels of risk than A2; and this is largely explained by differing levels of income and technology not by differing amounts of climate forcing.

Phosphorus: Past History and Contributions to the Global Food Supply

2019 ◽  
Vol 103 (1) ◽  
pp. 6-8 ◽  
Author(s):  
Terry Roberts
Keyword(s):  
Food Security ◽  
Food Supply ◽  
Food Production ◽  
Production Systems ◽  
Past History ◽  
Phosphate Fertilizer ◽  
Global Food ◽  
Global Food Supply

Since its early rudimentary forms, phosphate fertilizer has developed in step with our understanding of successful food production systems. Recognized as essential to life, the responsible use P in agriculture remains key to food security.

scholarly journals Assessing the Sensitivity of Main Crop Yields to Climate Change Impacts in China

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 172
Author(s):  
Yuan Xu ◽  
Jieming Chou ◽  
Fan Yang ◽  
Mingyang Sun ◽  
Weixing Zhao ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Food Production ◽  
Crop Yields ◽  
Climatic Factors ◽  
Climatic Data ◽  
The South ◽  
The North ◽  
Output Elasticity ◽  
The Impact

Quantitatively assessing the spatial divergence of the sensitivity of crop yield to climate change is of great significance for reducing the climate change risk to food production. We use socio-economic and climatic data from 1981 to 2015 to examine how climate variability led to variation in yield, as simulated by an economy–climate model (C-D-C). The sensitivity of crop yield to the impact of climate change refers to the change in yield caused by changing climatic factors under the condition of constant non-climatic factors. An ‘output elasticity of comprehensive climate factor (CCF)’ approach determines the sensitivity, using the yields per hectare for grain, rice, wheat and maize in China’s main grain-producing areas as a case study. The results show that the CCF has a negative trend at a rate of −0.84/(10a) in the North region, while a positive trend of 0.79/(10a) is observed for the South region. Climate change promotes the ensemble increase in yields, and the contribution of agricultural labor force and total mechanical power to yields are greater, indicating that the yield in major grain-producing areas mainly depends on labor resources and the level of mechanization. However, the sensitivities to climate change of different crop yields to climate change present obvious regional differences: the sensitivity to climate change of the yield per hectare for maize in the North region was stronger than that in the South region. Therefore, the increase in the yield per hectare for maize in the North region due to the positive impacts of climate change was greater than that in the South region. In contrast, the sensitivity to climate change of the yield per hectare for rice in the South region was stronger than that in the North region. Furthermore, the sensitivity to climate change of maize per hectare yield was stronger than that of rice and wheat in the North region, and that of rice was the highest of the three crop yields in the South region. Finally, the economy–climate sensitivity zones of different crops were determined by the output elasticity of the CCF to help adapt to climate change and prevent food production risks.

Systematic exploration of scenario spaces

foresight ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 59-75 ◽  
Author(s):  
Henrik Carlsen ◽  
E. Anders Eriksson ◽  
Karl Henrik Dreborg ◽  
Bengt Johansson ◽  
Örjan Bodin
Keyword(s):  
Climate Change ◽  
Methodological Approach ◽  
Intergovernmental Panel ◽  
Climate Change Research ◽  
Content Type ◽  
Generating Sets ◽  
Ex Post ◽  
Systematic Exploration ◽  
Emissions Scenarios ◽  
Business As Usual

Purpose – Scenarios have become a vital methodological approach in business as well as in public policy. When scenarios are used to guide analysis and decision-making, the aim is typically robustness and in this context we argue that two main problems at scenario set level is conservatism, i.e. all scenarios are close to a perceived business-as-usual trajectory and lack of balance in the sense of arbitrarily mixing some conservative and some extreme scenarios. The purpose of this paper is to address these shortcomings by proposing a methodology for generating sets of scenarios which are in a mathematical sense maximally diverse. Design/methodology/approach – In this paper, we develop a systematic methodology, Scenario Diversity Analysis (SDA), which addresses the problems of broad span vs conservatism and imbalance. From a given set of variables with associated states, SDA generates scenario sets where the scenarios are in a quantifiable sense maximally different and therefore best span the whole set of feasible scenarios. Findings – The usefulness of the methodology is exemplified by applying it to sets of storylines of the emissions scenarios of the Intergovernmental Panel on Climate Change. This ex-post analysis shows that the storylines were not maximally diverse and given the challenges ahead with regard to emissions reduction and adaptation planning, we argue that it is important to strive for diversity when developing scenario sets for climate change research. Originality/value – The proposed methodology adds significant novel features to the field of systematic scenario generation, especially with regard to scenario diversity. The methodology also enables the combination of systematics with the distinct future logics of good intuitive logics scenarios.

scholarly journals Is Current Research on How Climate Change Impacts Global Food Security Really Objective?

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2342
Author(s):  
Wangang Liu ◽  
Yiping Chen ◽  
Xinhua He ◽  
Ping Mao ◽  
Hanwen Tian
Keyword(s):  
Climate Change ◽  
Developing Countries ◽  
Food Security ◽  
Field Research ◽  
Climate Change Impacts ◽  
Developed Countries ◽  
Hotspot Analysis ◽  
Global Food Security ◽  
The Impact ◽  
Global Food

Global food insecurity is becoming more severe under the threat of rising global carbon dioxide concentrations, increasing population, and shrinking farmlands and their degeneration. We acquired the ISI Web of Science platform for over 31 years (1988–2018) to review the research on how climate change impacts global food security, and then performed cluster analysis and research hotspot analysis with VosViewer software. We found there were two drawbacks that exist in the current research. Firstly, current field research data were defective because they were collected from various facilities and were hard to integrate. The other drawback is the representativeness of field research site selection as most studies were carried out in developed countries and very few in developing countries. Therefore, more attention should be paid to developing countries, especially some African and Asian countries. At the same time, new modified mathematical models should be utilized to process and integrate the data from various facilities and regions. Finally, we suggested that governments and organizations across the world should be united to wrestle with the impact of climate change on food security.

scholarly journals Buzz City: Bee-Builder's Toolkit

2021 ◽  
Author(s):  
Ryan Sisourath
Keyword(s):  
Food Production ◽  
Green Spaces ◽  
Urban Site ◽  
Bee Pollination ◽  
Urban Green Spaces ◽  
The Public ◽  
The Public Sphere ◽  
Major Factors ◽  
Global Food ◽  
Global Food Supply

Bee populations are directly linked to the sustainability of our environment, as healthy bees are required for viable food production. Habitat loss and fragmentation from rapid urban development are some of the major factors that have led to an alarming decline in recent bee populations. Without bee pollination, our global food supply would diminish immensely leading to shortages and crises that threaten our food security. This thesis will explore architectural strategies to create dedicated bee habitats within the urban realm. The designs will encompass the crafting of a bee builder’s toolkit, which consist of bee-friendly components that can be adapted to various urban site conditions. It will look at opportunities for integrating bee-friendly habitats within the public sphere. These will create networks of pollination corridors that connect existing fragmented urban green spaces. This strategy aims to strengthen pollination and pollinator health while stimulating public engagement and awareness of the environment.

Modeling the Impact of Climate Change on Agriculture and Food Production

2013 ◽  
pp. 454-470
Author(s):  
C. M. Kao ◽  
Y. T. Tu ◽  
S. F. Cheng ◽  
R. Y. Surampalli ◽  
Tian C. Zhang
Keyword(s):  
Climate Change ◽  
Food Production ◽  
Impact Of Climate Change ◽  
Agriculture And Food ◽  
The Impact

scholarly journals The Impact of Resource and Nutritional Resilience on the Global Food Supply System

2020 ◽  
Vol 12 (2) ◽  
pp. 751 ◽  
Author(s):  
Wayne Martindale ◽  
Mark Swainson ◽  
Sonal Choudhary
Keyword(s):  
Supply Chains ◽  
Food Supply ◽  
Food System ◽  
Sustainable Food ◽  
Food Supply Chains ◽  
Critical Control Points ◽  
Development Goals ◽  
The Impact ◽  
Global Food ◽  
Global Food Supply

Pressure points in global food supply where resilience in supply chains can be limited or controlled are the equivalent of Critical Control Points in food safety systems. The approach of using critical control in supply chains can provide insights for nutritional improvement, sustainable food trade and food waste reduction. The pressure points determine the provision of a secure and sustainable food system where the outcomes of reducing their criticality are identified in the UN Sustainable Development Goals and other international programmes. These seek to reduce climate change impact and improve public health provision. While policy makers are rightly focussed on these targets, the data analysis methods required to rank and associate resource flow pressure points with commercial food supply chains and nutritional goals remain untested. Here, we show how methodologies can identify where opportunities to tackle future criticality exist, and where they are currently being overlooked for food categories that have the greatest consumer and dietary protein demand. The analysis provides insights that identify where latent restrictions in resilience can occur, so that the future risk of food insecurity is reduced.

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