Sam Abernethy
Ph.D. Student in Applied Physics, admitted Autumn 2018
All Publications
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Atmospheric methane removal may reduce climate risks
ENVIRONMENTAL RESEARCH LETTERS
2024; 19 (5)
View details for DOI 10.1088/1748-9326/ad3b22
View details for Web of Science ID 001201708200001
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Global fossil carbon emissions rebound near pre-COVID-19 levels
ENVIRONMENTAL RESEARCH LETTERS
2022; 17 (3)
View details for DOI 10.1088/1748-9326/ac55b6
View details for Web of Science ID 000765542400001
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Global temperature goals should determine the time horizons for greenhouse gas emission metrics
ENVIRONMENTAL RESEARCH LETTERS
2022; 17 (2)
View details for DOI 10.1088/1748-9326/ac4940
View details for Web of Science ID 000753147500001
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Methane removal and the proportional reductions in surface temperature and ozone.
Philosophical Transactions of the Royal Society A
2021; 379: 20210104: 20210104
Abstract
Mitigating climate change requires a diverse portfolio of technologies and approaches, including negative emissions or removal of greenhouse gases. Previous literature focuses primarily on carbon dioxide removal, but methane removal may be an important complement to future efforts. Methane removal has at least two key benefits: reducing temperature more rapidly than carbon dioxide removal and improving air quality by reducing surface ozone concentration. While some removal technologies are being developed, modelling of their impacts is limited. Here, we conduct the first simulations using a methane emissions-driven Earth System Model to quantify the climate and air quality co-benefits of methane removal, including different rates and timings of removal. We define a novel metric, the effective cumulative removal, and use it to show that each effective petagram of methane removed causes a mean global surface temperature reduction of 0.21 ± 0.04°C and a mean global surface ozone reduction of 1.0 ± 0.2 parts per billion. Our results demonstrate the effectiveness of methane removal in delaying warming thresholds and reducing peak temperatures, and also allow for direct comparisons between the impacts of methane and carbon dioxide removal that could guide future research and climate policy. This article is part of a discussion meeting issue 'Rising methane: is warming feeding warming? (part 1)'.
View details for DOI 10.1098/rsta.2021.0104
View details for PubMedCentralID PMC8473947
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Atmospheric Methane Removal: A Research Agenda
Philosophical Transactions of the Royal Society A
2021; 379: 20200454
View details for DOI 10.1098/rsta.2020.0454
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Temporary reduction in daily global CO2 emissions during the COVID-19 forced confinement
NATURE CLIMATE CHANGE
2020
View details for DOI 10.1038/s41558-020-0797-x
View details for Web of Science ID 000534517700001
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Reply to: Practical constraints on atmospheric methane removal
NATURE SUSTAINABILITY
2020
View details for DOI 10.1038/s41893-020-0498-5
View details for Web of Science ID 000521528300002
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ABUZZ : A MOBILE PHONE BASED CITIZEN SCIENCE PLATFORM FOR CROWDSOURCING ECOLOGICAL DATA FOR MOSQUITO SURVEILLANCE
AMER SOC TROP MED & HYGIENE. 2019: 448
View details for Web of Science ID 000507364504170
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The importance of chaotic attractors in modelling tumour growth
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
2018; 507: 268–77
View details for DOI 10.1016/j.physa.2018.05.093
View details for Web of Science ID 000437385100020