Knowledge for better food systems

Showing results for: Deforestation

Image: NASA, Deforestation in Amazonia, seen from satellite, Wikimedia Commons, Public Domain
30 April 2018

Tropical deforestation is nearing a critical point, beyond which the rate of forest fragmentation could increase much more rapidly than the rate of forest area loss, according to a study. Fragmentation can have negative effects on biodiversity and also increases carbon emissions beyond those from just the deforested areas, since trees are at greater risk of dying on the edges between forest and cleared land. The researchers predict that reforestation and a reduction in the rate of deforestation are both needed if fragmentation is to be reversed.

Image: Adcro, The exterior of an Iceland supermarket in Horwich, Bolton, Greater Manchester, Wikimedia Commons, Creative Commons Attribution-Share Alike 4.0 International
24 April 2018

Frozen food supermarket Iceland has pledged to remove palm oil from all of its own-brand lines by the end of 2018, citing concerns over collapsing orangutan populations and deforestation. The initiative - the first of its kind among major UK supermarkets - should reduce demand for palm oil by over 500 tonnes a year.

Image: Alistair Kitchen, Orangutan Baby, Flickr, Creative Commons Attribution 2.0 Generic
23 April 2018

A study shows that 100,000 orangutans in Borneo have been lost between 1999 and 2015 - around half of the population. The results show that this precipitous decrease is not just due to deforestation, since numbers of orangutans also declined in selectively logged and intact forests.

Image: Tristantan, Palm oil fruit, Pixabay, Creative Commons CC0
26 March 2018

A report from the European Commission Directorate-General for the Environment reviews environmental, social and economic aspects of palm oil production and consumption, and evaluates existing palm oil sustainability initiatives.

Photo: Raúl Hernández González, Flickr, Creative Commons License 2.0
8 January 2018

This article presents the results from a new global soil erosion model, based on a combination of remote sensing, GIS modelling and census data. It finds that accelerated soil erosion due to land use change between 2001 and 2012 is a major threat to soil and future agriculture but that previous commonly used estimates of annual global soil erosion were twice too high. In comparison with previous studies which had a mapping resolution of around 10–60 km cell size, this model with its high-resolution 250m cell size has far greater predictive power than any previous model. 

Photo: Neil Palmer, CIAT Nicaragua, Flickr Creative commons licence 2.0  generic
1 June 2017

In this information note from the CGIAR programme on Climate change, Agriculture and Food security (CCAFS), researchers present a rough estimate of the proportion of global agricultural emissions that can be attributed to smallholder farmers in developing countries.

Photo: Joshua Mayer, Forest, Flickr, Creative Commons License 2.0 generic.
1 June 2017

This paper takes countries’ mitigation targets (Intended National Determined Contributions, or INDCs), submitted since the Paris Climate agreement, and, using supplementary information from other official documents, quantifies how much of the promised actions are related to Land Use, Land Use Change and Forestry (LULUCF, primarily deforestation and forest management). 

Photo: S Khan, Shrimps, Flickr, Creative Commons License 2.0 generic.
16 May 2017

This research calculates the carbon footprint of a meal to give a tangible example, aimed at the public in the US, about how daily food decisions can affect deforestation and greenhouse gas emissions (GHGe). The study uses a life-cycle assessment (LCA) approach that takes into account GHGe arising from the conversion of mangrove to cattle pastures and mangrove to shrimping ponds as well as from forests to pasture (cattle induced deforestation). 

Crustmania, Deforestation, Flickr, Creative Commons – Attribution 2.0 Generic
7 March 2017

This perspective article exposes and explains uncertainties in our historical calculations of carbon fluxes associated with land use and land cover change, and uses comparisons between dynamic global vegetation models (DGVMs) to estimate the effects of these uncertainties on historical, current and future assessments of carbon fluxes between the land and air.

10 January 2017

This report, entitled ‘What’s at Steak? The Real Cost of Meat’ published by the Global Forest Coalition in December 2016, emphasises the negative impact of industrial livestock production on forests, using five detailed case studies, in BoliviaBrazilIndiaParaguay, and Russia. In South America, for example, the report states that 71% of deforestation in the region has been driven by demand for livestock products.

Photo credit: Steve Slater, Flickr, Creative Commons License 2.0
29 November 2016

This article evaluates the impact of voluntary crop sustainability standards on biodiversity protection. The authors reviewed the 12 major crop standards (such as Organic cropland (IFOAM), Fairtrade and Roundtable on Sustainable Palm Oil), and found that only two of these prohibited all deforestation (Rainforest Alliance/Sustainable Agriculture Network and Proterra). 

Photo credit: Scion_cho, Junked, Flickr, Creative Commons licence 2.0
24 October 2016

A key ingredient in junk food is vegetable oil. 60% of this oil is from oil palm and soybean, production of which has been expanding in Southeast Asia and South America, resulting in widespread deforestation and biodiversity loss. In this article, the authors calculate the amount of current deforestation due to vegetable oil consumption (through junk food) and extrapolate vegetable oil demand to predict the deforestation future consumption patterns would cause by 2050.

Photo credit: James Anderson, photo-oil-palm-fruit-original, Flickr, Creative Commons licence 2.0
24 October 2016

The largest share of agricultural land in tropical landscapes is managed, not as large-scale industrial plantations, but by smallholders. This Nature Communications article integrates the interdisciplinary research of more than 20 research groups, and seeks to address gaps in our understanding of the ecological impacts of this smallholder-managed agricultural land. The study uses a multifaceted approach to investigating the crop choices that farmers make and how these choices impact on ecological and economic outcomes.

18 October 2016

This report by Zero Carbon Australia, outlines how research on greenhouse gas emissions from land use (agriculture and forestry) can be reduced to zero net emissions, coupled with economic opportunities and increased resilience in the face of climate change. The land use sector is the second largest source of emissions in Australia and is highly exposed to the impacts of climate change. 15% of total emissions in Australia are from the agriculture and forestry sectors, the largest component of which is land clearing for grazing.

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.

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