Showing results for: Climate change: Impacts and adaptation
All regions around the world are affected by climate change. Extreme weather events, increased rainfall, heat waves and droughts are among the changes caused by the rise in average global temperature. Weather variability is generally increased as well and can be a great cause of concern for farmers. The future impact of the changes on agriculture is unclear: in some areas food production may increase, whereas in many others changing long-term conditions and unstable weather patterns may have disastrous consequences. Measures to adapt to the new climate and weather are being developed in most industries and issues around the financing of such measures have been the cause of contestation in global policy processes such as IPCC. In agriculture, it is considered necessary to prepare for changing climatic conditions through adapting seeds, crop/livestock choices, and production practices and fostering more resilient systems that can cope with shocks and variable conditions. Such adaptation to a changing climate is a huge challenge, requiring joined up institutional thinking, plenty of engagement with farmers, and adequate financing of agricultural R&D.
Certain cereal grains and other crop plants have been shown to have lower iron concentrations when grown under elevated CO2. This study by researchers from Massachusetts, USA, examined diets from 152 countries to investigate which groups of people might be most at risk of iron deficiency as a result of increasing CO2 emissions, on the basis of current dietary composition, the current global prevalence of iron deficiency, and projected CO2 emissions up to the year 2050.
This paper details the findings of a meta-analysis of published data on the impact of increasing temperatures on the global and regional yield of wheat, rice, maize and soy.
The journal Agriculture for Development invited the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS) to produce a special issue which provides a broad-ranging selection of articles, news from the field, and book reviews in the area of climate smart agriculture.
This OECD Food, Agriculture and Fisheries report employs a meta-analysis/literature review approach to identify and analyse barriers to the adoption of “climate-friendly” policies in agriculture; that is, the adoption of measures to enhance the adaptation of farming to the impacts of climate change, and the mitigation of its contributions to greenhouse gas (GHG) emissions. It should be noted that the report does not go into specifics about what constitutes a climate-friendly practice: this is taken to be an understood concept and the focus of the report is on the barriers to adoption of these measures, not the measures themselves.
A new resource has been created by the Carbon Brief, which brings together data from a number of indicators that show the effects of climate change, showing trends in our climate, atmosphere, oceans, and the cryosphere (ice)
This study presents estimates of how changes in climate might affect the value of European farmland. Based on data for over 41 000 farms, the results suggest that their economic value could drop by up to 32%, depending on the climate scenario considered. The models represent severe, moderate and mild outcomes, respectively. Farms in southern Europe are particularly sensitive to climate change and could suffer value losses of up to 9% per 1 °C rise.
Planetary health is a new approach that broadens health research to include the health of human civilisations and the natural (external) systems on which they depend. In a new journal, alongside The Lancet Public Health and The Lancet Global Health, The Lancet Planetary Health will explore the links between planetary and human health and how we can protect the environment on which we depend and develop sustainable systems that support human health.
This report from IIED looks at when and how social learning-oriented approaches contribute to better and more sustainable development outcomes, focusing specifically on food security and climate change.
This is a commentary by Carbon Brief’s Leo Hickman on the latest executive order by US president Donald Trump that we copy below, for the original post -see here.
The German Development Institute along with the African Centre for Technology Studies,the Stockholm Environment Institute, and the UNFCCC secretariat have developed a new tool to compare the 163 existing national climate action plans.
In this paper, the authors present an analysis of the nitrogen cycle in the agricultural production system of 12 world regions. From these results, they go on to suggest improvements in nitrogen use by changing the role of human diet, international trade and local production.
The summary of key messages and full reports from the 1.5 Degrees conference which was held between 20-22 September 2016 in Oxford have now been published.
This paper takes as its starting point the mainstream projections that in future, global food production will need to increase by another 60–110% by 2050, to keep up with anticipated increases in human population and changes in diet (it should be noted, however, that the need and feasibility of such increases is contested (see), with many arguing that dietary change and waste reduction can reduce the need for production increases (see)).
This report highlights the impacts of climate change on the agricultural sector and how, in the future, this is increasingly threatening food security for millions. The report states that meeting the goals of eradicating hunger and poverty by 2030, while addressing the threat of climate change, will require profound transformation of food and agriculture systems worldwide – which is of course a major challenge.
The ‘2016 Food, Water, Energy and Climate Outlook’ by the MIT Joint Program on the Science and Policy of Global Change finds that even if commitments from the COP21 climate agreement are kept, many staple crops in various regions are still at risk of crop failures through extreme events, but at the same time, yields in many regions are projected to increase.