Showing results for: Land footprint
Data visualisations by Max Roser and Hannah Ritchie, published at Our World In Data, show global land use types, changes over time and land use in agriculture. For example, a graph shows that half of the Earth’s habitable land surface is used for agriculture, of which 77% is used for livestock (including both grazing land and land for feed production). For comparison, livestock accounts for 17% of global calorie supply and 33% of global protein supply.
Better models are needed to assess and manage conflicting requirements for ecosystems services from land, a recent paper argues. These “uber integrated assessment models”, as the paper calls them, would help decision-makers to better understand the links between local and global land use policies.
The planetary boundaries concept provides a theoretical upper limit on human activity which the planet is able to sustain without major perturbation to the current ‘Earth system’. Previously, nine planetary boundaries (PBs) have been proposed and recently Steffen et al. (2015) have updated these boundary definitions and assessed the current state of the position of human activity with respect to each boundary. In this article, researchers from a number of food, climate change, agricultural and environmental research institutions around the world build on this work by assessing the impact of agriculture on each PB status, based on a detailed literature review of the available research.
The new report by World Wildlife Fund, Appetite for Destruction, highlights the vast amount of land that is needed to grow the crops used for animal feed, including in some of the planet’s most vulnerable areas such as the Amazon, Congo Basin and the Himalayas.
This paper proposes a solution to the problems associated with the high inefficiencies and indirect detrimental environmental impacts caused by reactive nitrogen use in agriculture.The researchers suggest that land-based agriculture could be bypassed and that Haber Bosch derived nitrogen could be used directly for reactor based microbial protein production. The advantages of microbial protein production are summarised, as are the opportunities and technical challenges for large-scale production. The authors emphasise that, aside from the scientific innovation required, the main challenge to address is obtaining acceptability from regulators and consumers.
This information brief is included in Science Journal for Kids, a resource dedicated to sharing cutting edge peer-reviewed environmental research with students (and their teachers).
This paper compares stylised, hypothetical dietary scenarios to assess the potential for reducing agricultural land requirements. It suggests that a combination of smaller shifts in consumer diet behaviour – such as reducing beef consumption by replacing with chicken, introducing insects into mainstream diets and reducing consumer waste – could reduce agricultural land requirements.
The authors of this paper compare the impact of intensification in the beef and dairy sectors via two pathways; either intensification within a system (e.g. a mixed crop-livestock system) or through transitioning to another more productive system (from pasture to mixed crop-livestock production) and assesses the mitigation potential that could arise. It reviews the impacts of these forms of intensification on both GHG emissions, land occupation and land use change (LUC), the last of which has often been excluded in other similar analyses.
A new study submitted to us by an FCRN member discusses the virtual land footprint associated with regional supply capacities.
With global trade, UK consumption patterns are displacing cropland use to other countries. This paper by FCRN members Henri de Ruiter, Jennie Macdiarmid and Pete Smith looks at the environmental consequences of competition for global agricultural land and specifically at the total land footprint associated with the total livestock product supply in the UK.