Knowledge for better food systems

Showing results for: Carbon sinks and sequestration

18 October 2016

This paper presents the results of a modelling exercise that aimed to identify low emissions pathways for a growing global livestock sector. This article uses 6 case studies, modelled in the Global Livestock Environmental Assessment Model developed by FAO, to illustrate the climate change mitigation potential of livestock achievable through changes in feeding, breeding and husbandry as well as grazing management to increase soil carbon sequestration.

Photo: South African Tourism, Northern Cape, Flickr, Creative Commons License 2.0
11 October 2016

Recent assessments have strongly suggested that meeting the widely agreed target of limiting global warming to less than 2°C will require the deployment of substantial carbon sinks in addition to measures to curb greenhouse gas (GHG) emissions. This perspective article examines the latest research and thinking on the ability of agricultural soil management to reduce GHG emissions and promote soils as carbon sinks, and the practical feasibility of implementing available soil management practices

Credit: Eric Huybrechts, Campi, fields - Le Marche, Italy, Flickr, Creative Commons Licence 2.0
4 October 2016

This study compares real world observations of the age of carbon in soils, to soil carbon’s age as represented in earth system models that are used to make climate change projections. It then explores the implications of the results, by modelling expected future levels of carbon storage in global soils, occurring in response to increasing levels of atmospheric carbon dioxide. To illustrate the difference, modelled increases in soil carbon storage are contrasted both before and after updating earth systems models to reflect these real-world observations.

Photo: Tishman Environment and Design Center, Treeplanting, Flickr, Creative Commons License 2.0
28 September 2016

Among climate mitigation options, afforestation offers its carbon sequestration potential at a moderate cost, and therefore might be used at a large scale in the future. As suitable land is limited though, competition of land for forest with crop and pastureland might drive food prices up.

Photo: Marufish, palm oil mill, Flickr, Creative Commons licence 2.0
20 September 2016

Strong demand for vegetable oil has led to a boom in the Indonesian and Malaysian palm oil industries since 1990. Typically planted in extremely large monoculture plantations, the crop has been implicated in biodiversity loss and human rights issues.

16 September 2016

Researchers in California conducted a life cycle assessment to model the climate change mitigation potential of consuming produce grown in household vegetable gardens as opposed to those from stores.

Photo: jai Mansson, Flickr, Creative Commons License 2.0
6 September 2016

This letter in Global Change Biology responds to a paper published earlier in the year in Nature Climate Change by de Silva et al (summarised by the FCRN here) which concludes that a combination of strict land controls and an increase in beef production in the Amazon could lead to greater emissions reduction than a scenario of land control and no beef production increases.

Photo: Rod Waddington, After the Rainforest Uganda, Flickr, Creative Commons License 2.0
6 September 2016

In this paper, land change scenarios are modelled that include biodiversity protection or afforestation for carbon sequestration as an explicit demand which competes with demand for food and feed production.

Photo: glennhurowitz, Palm oil plantation encroaching on forest, Flickr, Creative commons licence 2.0
1 August 2016

This study warns that converting Africa's tropical forests into monoculture palm plantations will cause a significant spike in carbon emissions and highlights that regulation can assist in achieving net-zero carbon while meeting production goals.

Photo: Moyan Brenn, Flickr, creative commons licence 2.0)
8 July 2016

According to this UK study there is a potential for improving soil carbon assessments if inventories increasingly assess soils below the current common level of 30 cm. The researchers estimate that over double the amount of carbon is stored in all UK grassland soils when looking at a depth of 1 metre compared to estimates where only the top 30 cm of soil is considered.

(Photo: Neil Palmer (CIAT) Flickr creative commons licence 2.0)
7 July 2016

Innovative, climate-smart soil-management can be developed to improve soil fertility; these can increase agricultural production and food security while contributing to climate mitigation through carbon sequestration. The authors propose the solution of recreating conditions that lead to the formation of ADE (African Dark Earths).

Photo: Natural resources conservation service (Flickr, creative commons 2.0)
9 June 2016

This paper looks at how soil can help contribute to climate mitigation.  It argues that by decreasing greenhouse gas emissions, sequestering carbon and using prudent agricultural management practices that improve the soil-nitrogen cycle (tighter cycle with less leakage), it is possible to enhance soil fertility, bolster crop productivity, improve soil biodiversity, and reduce erosion, runoff and water pollution.

20 April 2016

In a guest post for Carbon brief University of Leeds professor of population ecology and FCRN advisory board member Tim Benton and Dr Bojana Bajželj of WRAP conclude that food related emissions will take up our entire carbon budget by 2050 if we don’t change our diets and the way our food is produced, so destroying any chance of meeting the raised ambition of the Paris Agreement.

20 April 2016

This study is the first to look at the net balance of the three major (biogenic, non-fossil fuel) greenhouse gases; carbon dioxide, methane, and nitrous oxide - for every region of earth's land masses. It analyses emissions from land use and land use change and uptakes from land and forests and concludes that the terrestrial biosphere (land and forests) is a net emitter of these greenhouse gases.

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