Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Global N2O emissions from our planet: Which fluxes are affected by man, and can we reduce these?

Søren Christensen, Kathrin Rousk

iScience · 2024

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Summary

Christensen and Rousk provide a global assessment of N₂O emission sources and sinks, distinguishing natural from anthropogenic fluxes. The authors appear to conclude that whilst some agricultural and soil-derived N₂O hotspots are identifiable, certain emission sources present limited technical scope for reduction. This review contextualises the complexity of global N₂O mitigation within current farming systems and geochemical cycles.

Regional applicability

Findings on anthropogenic N₂O from agricultural soils are directly relevant to United Kingdom farming policy and climate commitments, particularly for nitrogen fertiliser management and intensive livestock systems. The distinction between reducible and inherent emission sources may inform UK Environment Agency guidance on realistic emission reduction targets.

Key measures

N₂O emission fluxes by source category; proportion of emissions attributable to human activity; technical feasibility of reduction strategies

Outcomes reported

The study examines global nitrous oxide emission fluxes from natural and agricultural sources, identifying which are anthropogenically driven and evaluating feasibility of emission reductions.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Mixed farming
DOI
10.1016/j.isci.2024.109042
Catalogue ID
SNmonuu875-izlcuy

Topic tags

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