Articles in 2024

Staying within the safe and just planetary boundary of phosphorus in China at the river-basin scale requires a systemic management strategy for the livestock sector.

Sustainable phosphorus (P) management is central to food security and a healthy environment. This study quantifies the impacts of crop–livestock production on P use and losses at the sub-basin scale in China and evaluates the exceedance of a ‘safe’ and ‘just’ P planetary boundary.

Crop diversity and cropland area stabilize food production as much as irrigation, but larger countries are likely to benefit more. This relationship can guide policy development and nation-specific management strategies in the pursuit of stable food supplies.

Biological diversity and food availability are intrinsically linked, yet trade-offs between them often arise. Further research is needed on the specific issues faced in different contexts and what could help overcome them.

Circularity principles and tipping the ratio of animal- to plant-based proteins towards plant-based diets could largely reduce greenhouse gas emissions and land-use change impacts in the EU28, while avoiding micronutrient losses associated with lower animal-based protein intake.

Dietary patterns make a substantial contribution to greenhouse gas (GHG) emissions. Research is needed to investigate whether these dietary pattern-level GHG emission contributions can be disaggregated into food product-specific GHG emissions estimates and used to encourage citizens to switch from high- to low-emitting foods.

Almost half of land use and nearly three-quarters of greenhouse gas emissions can be reduced by adopting circularity principles and reducing the ratio of animal-sourced protein to plant-sourced protein from 60:40 to 40:60 in European diets.

One strategy to reduce the ecological footprint of food systems is to replace higher-emissions food products with lower-emissions alternatives. This study estimates the potential impact of product switches in Australia within ‘very similar’ and ‘less similar’ food categories in terms of greenhouse gas emissions and the nutritional quality and energy density of consumer purchases.

Crop production data from 131 nations covering six decades reveal that the stabilizing effects of crop diversity are stronger as national land area increases, with only limited stabilizing effects in the smallest nations.

A sweet gel from the endocarp of cocoa pods and the concentrated juice of the cocoa fruit pulp can replace sugar in a chocolate recipe, reducing the environmental impact associated with its production and improving the nutritional value of chocolate.

Food systems are responsible for around one-third of global anthropogenic greenhouse gas emissions, and dish-level emissions are detailed end-use representatives of demand-side emissions. Low-carbon food consumption strategies are therefore linked to the Paris Agreement targets and might determine their achievement.

Estimates of greenhouse gas emissions related to food consumption typically consider ingredients, rather than final dishes. This study combines over 500 real-life restaurant menu dishes with data on 170 million consumed meals in China, highlighting the potential of consumers to mitigate climate change through modifications in their eating patterns.

The conventional cocoa value chain has important environmental, nutritional and socio-economic implications. This study presents a chocolate formulation that combines the cocoa pod endocarp and pulp juice to create a sweetening gel that replaces refined sugar, offering improved nutritional value and reduced environmental impact while also contributing to income diversification for smallholder farmers.

With centralized production, the price of ammonia-based fertilizers is affected by the volatility of the fossil fuel market, complex supply chains and long-distance transportation costs. Now, an analysis of the cost-competitiveness of decentralized low-carbon ammonia production suggests that a substantial fraction of the global ammonia demand could be cost-competitively supplied by small-scale technologies by 2030.

We provide evidence that intensive industrialization over the past century, particularly of the livestock trade, has facilitated host jumps and accumulation of antimicrobial resistance genes in Salmonella enterica, leading to the global transmission of this pathogen from Europe and the USA during the height of pork production.

The production of ammonia-based nitrogen fertilizers, key to food production, is highly concentrated and therefore susceptible to price volatility and supply chain disruptions. This study examines the cost-competitiveness of a decentralized ammonia industry with low-carbon ammonia production using small modular technologies, such as electric Haber–Bosch or electrocatalytic reduction.

The ongoing humanitarian crisis in Gaza is unprecedented in terms of the share of the population experiencing acute food insecurity and famine and the speed of the onset of the crisis. Research can help understand and anticipate the long-term impacts of the conflict on people and livelihoods, design more effective humanitarian support systems and identify options for creating resilient post-conflict livelihoods.

Linking spatially explicit inter-city nitrogen pollution transfer embedded in food trade to urbanization pathways and historic agricultural production trends reveals evidence of a ’pollution haven’ phenomenon in China’s Greater Bay Area, exacerbated by impeded agricultural development in less-urbanized surrounding cities.

The food system of urban agglomeration undergoes continuous transitions and poses changing pressure to the environment, especially in terms of nitrogen (N) pollution. This study highlights the decreased N use efficiency and intensified local N pollution in the context of uneven agricultural contraction in urban agglomeration and reveals how cities can leverage synergies for coordinated N pollution mitigation.

Society must revisit the currently dominant agricultural production model based on land expansion and intensification. Greenhouse cultivation represents a promising alternative, particularly in the Global South.