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Related Experiment Video

Updated: Jun 8, 2026

Simulating Temperature in a Soil Incubation Experiment

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

Microorganisms and climate change: terrestrial feedbacks and mitigation options.

Brajesh K Singh¹, Richard D Bardgett, Pete Smith

¹Macaulay Land Use Research Institute, Aberdeen AB15 8QH, UK. b.singh@uws.edu.au

Nature Reviews. Microbiology

|October 16, 2010

Summary

Microorganisms are key to greenhouse gas emissions, but their response to climate change remains unclear. Understanding these microbial processes is crucial for accurate climate models and potential mitigation strategies.

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Area of Science:

Environmental microbiology
Climate change science
Biogeochemical cycles

Background:

Microbial activities significantly influence global fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
These microorganisms are sensitive to climate change, with rapid responses anticipated.
The net effect of microbial changes on greenhouse gas emissions (positive or negative feedback) is not well understood.

Purpose of the Study:

To elucidate the mechanisms by which microorganisms regulate terrestrial greenhouse gas flux.
To improve the predictive accuracy of climate models concerning microbial contributions.
To explore the role of biotic and abiotic interactions in microbial greenhouse gas regulation.

Main Methods:

Investigating microbial community structures and functions.
Analyzing gas exchange in terrestrial ecosystems under varying environmental conditions.
Utilizing isotopic tracing and incubation experiments to quantify microbial gas production and consumption.

Main Results:

Identified specific microbial pathways that control the production and consumption of CO2, CH4, and N2O.
Quantified the sensitivity of these microbial processes to temperature and moisture changes.
Observed complex interactions between microbial communities and soil properties influencing net greenhouse gas emissions.

Conclusions:

Microbial regulation of terrestrial greenhouse gas flux is complex, involving intricate biotic and abiotic interactions.
Accurate climate modeling requires a deeper understanding of these microbial mechanisms.
Managing terrestrial microbial processes offers a potential avenue for mitigating climate change by reducing greenhouse gas emissions.