Showing results for: Deforestation
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.
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.
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).
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).
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.
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 Bolivia, Brazil, India, Paraguay, 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.
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).
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.
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.
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.
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.
In this analysis presented in the journal Nature, four conservation scientists warn against the current trend of over-reporting on climate change’s impacts on biodiversity. Instead, they find that by far the biggest drivers of biodiversity loss are overexploitation (the harvesting of species from the wild at rates that cannot be compensated for by reproduction or regrowth) and agriculture.
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.
This special issue of the Journal of Industrial Ecology takes a closer look at how consumption is increasingly met by global supply chains that often involve large geographical distances.