Informing manure recycling potential with an integrated indicator framework DOI Creative Commons
Xin Zhang, Yanyu Wang, Sheri Spiegal

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Abstract Livestock production has intensified globally to meet dietary demand, leading excessive manure nutrient loss the environment that affects ecosystems and human health. Recycling back cropland potentially mitigates pollution curtails use of energy-intensive fertilizers. However, methods for estimating surplus, defined as difference between available nutrients crop requirements, vary widely. Using contiguous United States a case study, estimates nitrogen (N) in surplus calculated following methodologies six peer-reviewed studies ranged from -20.2 ± 2.0 -2.4 0.3 Tg N yr-1 (negative values indicating availability lower than demand). To reconcile these large differences, we developed framework integrates existing new metrics demand. We estimate current U.S. is -12.2 yr-1 improved diffusion technologies could increase by 0.8 0.1 yr-1. Collection all confined livestock, assuming enabling technological advancements, add another 2.9 Reducing demand improving efficiency further 2.5 2.4 In combination, gap recovery synthetic fertilizers be reduced about 50% (6.2 yr-1). Applied at county level, this demonstrates regional variation opportunities improve recycling, which informs local national strategies.

Language: Английский

Global energy use and carbon emissions from irrigated agriculture DOI Creative Commons
Jingxiu Qin, Weili Duan, Shan Zou

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 10, 2024

Abstract Irrigation is a land management practice with major environmental impacts. However, global energy consumption and carbon emissions resulting from irrigation remain unknown. We assess the worldwide associated irrigation, while also measuring potential reductions achievable through adoption of efficient low-carbon practices. Currently, contributes 216 million metric tons CO 2 consumes 1896 petajoules annually, representing 15% greenhouse gas utilized in agricultural operations. Despite only 40% irrigated agriculture relies on groundwater sources, pumping accounts for 89% total irrigation. Projections indicate that future expansion could lead to 28% increase usage. Embracing highly efficient, methods has cut half reduce by 90%. considering country-specific feasibility mitigation options, may see 55% reduction. Our research offers comprehensive insights into contributing valuable information can guide assessments viability enhancing adaptive capacity within sector.

Language: Английский

Citations

52
Optimizing the Nitrogen Use Efficiency in Vegetable Crops DOI Creative Commons
Hector Valenzuela

Nitrogen, Journal Year: 2024, Volume and Issue: 5(1), P. 106 - 143

Published: Feb. 5, 2024

Nitrogen (N) is the most limiting nutrient for production of vegetable crops, but anthropogenic sources pose risks due to its transformation into several reactive forms and movement throughout environment. The bulk N research date improve Use Efficiency (NUE) has followed a reductionist factorial approach focused on synthetic application rates crop growth response, under monocultures. increased adoption diversified cropping systems, organic sources, alternative management practices makes it more challenging unravel form transformation, movement, uptake dynamics, in time space. Here, based selected review recent literature, we propose holistic highlight key variables as well multilevel system, genetic, environmental, ecological, socioeconomic interactions cycle NUE. best strategies NUE include both inorganic rate calibration studies, germplasm selection, rotations, identification x interactions, pest water management. Agroecological that may vegetational diversification space, integrated crop–livestock conservation tillage, amendment inputs, legume-based landscape

Language: Английский

Citations

20
Cost-competitive decentralized ammonia fertilizer production can increase food security DOI Creative Commons
Davide Tonelli, Lorenzo Rosa, Paolo Gabrielli

et al.

Nature Food, Journal Year: 2024, Volume and Issue: 5(6), P. 469 - 479

Published: May 16, 2024

Abstract The current centralized configuration of the ammonia industry makes production nitrogen fertilizers susceptible to volatility fossil fuel prices and involves complex supply chains with long-distance transport costs. An alternative consists on-site decentralized using small modular technologies, such as electric Haber–Bosch or electrocatalytic reduction. Here we evaluate cost-competitiveness producing low-carbon at farm scale, from a solar agrivoltaic system, electricity grid, within novel global fertilizer industry. Projected costs for are compared historical market production. We find that relies on chain disruptions. Taking both factors into account, could achieve up 96% demand by 2030. These results show potential technologies in revolutionizing industry, particularly regions facing food insecurity.

Language: Английский

Citations

16
Coupling Waste Feedstocks to Microbial Protein Production in a Circular Food System DOI
Taylor Uekert, Alissa Bleem, Eric C. Holmes

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Global food production is a major contributor to greenhouse gas emissions, water consumption, and land use. As an alternative conventional agriculture, the of waste-derived microbial protein (MP) holds promise for reducing environmental impacts. MP can be mass-produced in volumetrically scalable fermentation processes on short time scales, enabling facile scale-up with lower use, impacts than animal and, some cases, plant protein. also produced from waste feedstocks, diverting landfills or natural environment. This Perspective explores availability suitability feedstocks production, suggesting that generated United States could fulfill twice current national demand. We discuss biotechnological separations required produce food-grade human consumption waste. Key challenges include consistency, consumer regulatory acceptance, process utilities (electricity, heat, nutrients) account up 85% costs most impacts, all which present opportunities innovation microbiology design spaces. Overall, this work highlights potential contribute more circular, resilient, sustainable system.

Language: Английский

Citations

2
The nexus of geopolitics, decarbonization, and food security gives rise to distinct challenges across fertilizer supply chains DOI Creative Commons
Rainer Quitzow, Margarita M. Balmaceda, Andreas Goldthau

et al.

One Earth, Journal Year: 2025, Volume and Issue: 8(1), P. 101173 - 101173

Published: Jan. 1, 2025

Language: Английский

Citations

2
Low-carbon ammonia production is essential for resilient and sustainable agriculture DOI Creative Commons
Stefano Mingolla, Lorenzo Rosa

Nature Food, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

Citations

2
Role of biomethane to offset natural gas DOI Creative Commons

Pietro Marconi,

Lorenzo Rosa

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 187, P. 113697 - 113697

Published: Sept. 26, 2023

The use of biomethane, produced through anaerobic digestion organic waste, holds promise as an energy source for mitigating climate change. This study quantifies the technical potential considering neither socio-economic nor political constraints, and then compares it to worldwide natural gas imports. Furthermore, calculates emission reduction achieved by substituting with biomethane. We find that biomethane can offset 29% two-thirds net-imports worldwide. Considering European crisis arising from Russian-Ukrainian conflict, we analyze each country generate enough decrease their reliance on imported Russian gas. Our estimates indicate almost one-third countries, including United Kingdom, France, Spain, Ireland, Slovenia, Romania, Greece, Sweden, Portugal, have completely replace imports Russia utilizing domestic production. also evaluates how reduce greenhouse emissions fossil gas, while methane leaks in both supply chains carbon combustion. results replacing will systems 11%, equivalent 1.1 Gt CO2-eq per year. These findings illustrate reducing our dependence its emissions.

Language: Английский

Citations

27
Is sustainable energy development ensured in the EU agriculture? Structural shifts and the energy-related greenhouse gas emission intensity DOI
Bo Peng, Dalia Štreimikienė, Giulio Paolo Agnusdei

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 445, P. 141325 - 141325

Published: Feb. 19, 2024

Language: Английский

Citations

13
Global biomethane and carbon dioxide removal potential through anaerobic digestion of waste biomass DOI Creative Commons
Yanlei Feng, Lorenzo Rosa

Environmental Research Letters, Journal Year: 2024, Volume and Issue: 19(2), P. 024024 - 024024

Published: Jan. 15, 2024

Abstract Anaerobic digestion is a bioenergy technology that can play vital role in achieving net-zero emissions by converting organic matter into biomethane and biogenic carbon dioxide. By implementing with capture storage (BECCS), dioxide be separated from biomethane, captured, permanently stored, thus generating removal (CDR) to offset hard-to-abate emissions. Here, we quantify the global availability of waste biomass for BECCS their CDR technical potentials. These feedstocks do not create additional impacts on land, water, biodiversity allow more sustainable development while still preserving soil fertility. We find up 1.5 Gt CO 2 per year, or 3% GHG emissions, are available deployed worldwide. The conversion generate 10 700 TWh equivalent 10% final energy consumption 27% natural gas supply. Our assessment quantifies climate mitigation potential its capacity contribute negative without relying extensive plantations.

Language: Английский

Citations

12
Impact of agricultural product brands and agricultural industry agglomeration on agricultural carbon emissions DOI
Sihui Zhang,

Xiaowei Wen,

Yong Sun

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 369, P. 122238 - 122238

Published: Aug. 28, 2024

Language: Английский

Citations

10