Showing results for: Carbon sinks and sequestration
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
This user-friendly book introduces biochar to potential users in the professional sphere. It de-mystifies the scientific, engineering and managerial issues surrounding biochar for the benefit of audiences including policy makers, landowners and farmers, land use, agricultural and environmental managers and consultants, industry and lobby groups and NGOs.
In this Nature Comment, Phil Williamson of the Natural England Research Council and the University of East Anglia, argues that in order for the climate goals agreed at the COP21 in Paris last year to be achieved, a full assessment must be made of the methods for removing carbon dioxide (CO2) from the atmosphere.
This study entitled, Can carbon emissions from tropical deforestation drop by 50% in 5 years?, published in Global Change Biology, discusses global carbon emission trends from deforestation and the case of Brazil in particular.
Research published in Nature Climate Change shows that accelerated erosion due to agricultural management is a major threat to food security and soil sustainability.
Erosion is a natural process that continually shapes the land surface. The removal of soil also removes carbon contained in that soil. With erosion removing top soil it removes the layer of the soil that has the greatest concentration of carbon.
This report by the Science-Policy Partnership Network synthesizes current scientific information to help oil palm policy makers make land-use decisions which jointly meet biodiversity and carbon conservation agendas.
The Science-Policy Partnership Network is led by University of York and was set up by the ‘Socially and Environmentally Sustainable Oil palm Research’ (SEnSOR) project with funding from the British Foreign and Commonwealth Office and The Roundtable on Sustainable Palm Oil (RSPO), and includes representatives from oil palm growers, consumer goods companies, NGOs, government and the RSPO.
In this new paper researchers confirm that as carbon emissions continue to climb, so too has the Earth's capacity to absorb carbon dioxide from the atmosphere. About half of the emissions of CO2 each year remain in the atmosphere; the other half is taken up by the ecosystems on land and the oceans.