Beyond CO2 equivalence: The impacts of methane on climate, ecosystems, and health

Mar, Kathleen A.; Unger, Charlotte; Walderdorff, Ludmila; Butler, Tim

doi:10.1016/j.envsci.2022.03.027

Cited by 117 publications

(39 citation statements)

References 59 publications

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“…The BECCS also include the waste-to-energy plants processing coupled with capturing and is a potential area for the promotion of carbon circular economy. The decay of these waste will result into the release of methane which has more potent effect on the climate that CO2 (Mar, Unger, Walderdorff, & Butler, 2022;. Despite having the disadvantage of high cost attributed to the dilute nature of CO2 gas in air which increases cost, the Direct Air Carbon Capture and Storage (DACCS) technology is now seriously been revisited as it offers the advantage of negative emissions.…”

Section: Carbon Capture Storage and Utilization Technology Prospectsmentioning

confidence: 99%

Climate change mitigation with carbon capture: An overview

Towoju

Petinrin

2023

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The world is at the verge of catastrophe occasioned by the effect of climate change. Drastic action needs to be taken to reverse this ugly trend. Some of the proffered solutions to global warming is the adoption of renewable energy usage and a stop of fossil fuels combustion. However, the low capacity factor and energy return has been the bane on the usage of some renewable energy sources. A leeway however, exists in the technology of removal of greenhouse gases referred to as Carbon Capture. The widely adopted method being at point source because of its high concentration favouring easier processes of removal. This technology has received increased attention over the years as evident from data for the past five years. However, this technology alone cannot guarantee atmospheric CO2 levels required to maintain global temperature rise below the 1.50C mark. Negative emission technology processes of which the Direct Air Capture (DAC) is one needs to be developed. The infancy of the DAC technology and the uncertainties that surrounds its cost still pose as challenges. The cost of removing a tonne of CO2 with DAC technology can be as high as $600, this is unsustainable and has to be drastically reduced. While it is projected that DAC technology can take out 980 Metric Tonne (MT) CO2/annum by 2050, current figures stand at 0.008 MT. It is our view that the development of solid adsorbents and the harnessing of the thermal energy inherent in the sun can be a game changer.

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Section: Carbon Capture Storage and Utilization Technology Prospectsmentioning

confidence: 99%

Climate change mitigation with carbon capture: An overview

Towoju

Petinrin

2023

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“…Policies which support reduction of fossil‐fuel combustion are necessary for climate change mitigation and will also serve to reduce ozone pollution. For example, methane (“natural gas”) is a potent greenhouse gas, 9,114 therefore policies that require reduced extraction, distribution, fugitive emissions, and combustion of methane are also beneficial for reducing ozone 9,115,116 …”

Section: Climate Change and Ozonementioning

confidence: 99%

Ozone and childhood respiratory health: A primer for US pediatric providers and a call for a more protective standard

Rosser

Balmes

2023

Pediatric Pulmonology

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Ground level ozone is a potent respiratory toxicant with decades of accumulated data demonstrating respiratory harms to children. Despite the ubiquity of ozone in the United States, impacting both urban and rural communities, the associated harms of exposure to this important air pollutant are often infrequently or inadequately covered during medical training including pulmonary specialization. Thus, many providers caring for children's respiratory health may have limited knowledge of the harms which may result in reduced discussion of ozone pollution during clinical encounters. Further, the current US air quality standard for ozone does not adequately protect children. In this nonsystematic review, we present basic background information for healthcare providers caring for children's respiratory health, review the US process for setting air quality standards, discuss the respiratory harms of ozone for healthy children and those with underlying respiratory disease, highlight the urgent need for a more protective ozone standard to adequately protect children's respiratory health, review impacts of climate change on ozone levels, and provide information for discussion in clinical encounters.

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“…Although it remains in the atmosphere for a relatively short period of time (~10 years) compared to carbon dioxide (centuries to millennia), its constant emission all over the world makes it a well-mixed greenhouse gas (IPCC, 2021). CH4 concentrations have a direct influence on the climate, but also have a number of indirect effects on human health and vegetation, including crop production (Mar et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Implementation of a Satellite-Based Tool for the Quantification of CH₄ emissions over Europe (AUMIA v1.0) – Part 1: Forward Modeling Evaluation against Near-Surface and Satellite Data

Vara-Vela

Karoff

Benavente³

et al. 2023

Preprint

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Abstract. Methane is the second most important greenhouse gas after carbon dioxide, and accounts for around 10 % of total European Union greenhouse gases emissions. Given that the atmospheric methane budget over a region depends on its terrestrial and aquatic methane sources, inverse modeling techniques appear as a powerful tools for identifying critical areas that can later be submitted to emission mitigation strategies. In this regard, an inverse modeling system of methane emissions for Europe is being implemented based on the Weather Research and Forecasting (WRF) model: the Aarhus University Methane Inversion Algorithm (AUMIA) v1.0. The forward modeling component of AUMIA consists of the WRF model coupled to a multipurpose global database of methane anthropogenic emissions. To assure transport consistency during the inversion process, the backward modeling component will be based on the WRF model coupled to a lagrangian particle dispersion module. A description of the modeling tools, input data sets and one-year forward modeling evaluation from April 01, 2018 to March 31, 2019 is provided in this paper. The a posteriori methane emission estimates, including a more focused inverse modeling for Denmark, will be provided in a second paper. A good general agreement is found between the modeling results and observations based on the TROPOspheric Monitoring Instrument (TROPOMI) onboard the Sentinel-5 Precursor satellite. Model-observation discrepancies for summer peak season are in line with previous studies conducted over urban areas in central Europe, with relative differences between simulated concentrations and observational data in this study ranging from study ranging from 1 to 2 %. Domain-wide correlation coefficients and root-mean-square-errors for summer months ranged from 0.4 to 0.5 and from 27 to 30 ppb, respectively. For winter months, otherwise, model-observation discrepancies show a significant overestimation of anthropogenic emissions over the study region, with relative differences ranging from 2 to 3 %. Domain-wide correlation coefficients and root-mean-square-errors in this case ranged from 0.1 to 0.4 and from 33 to 50 ppb, respectively, indicating that a more refined inverse analysis assessment will be required for this season. According to modeling results, the methane enhancement above the background concentrations came almost entirely from anthropogenic sources; however, these sources contributed with only up to 2 % to the methane total column concentration. Contributions from natural sources (wetlands and termites) and biomass burning were not relevant during the study period. The results found in this study contribute with a new model evaluation of methane concentrations over Europe, and demonstrate a huge and under explored potential for methane inverse modeling using improved TROPOMI products in large-scale applications.

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Beyond CO2 equivalence: The impacts of methane on climate, ecosystems, and health

Cited by 117 publications

References 59 publications

Climate change mitigation with carbon capture: An overview

Climate change mitigation with carbon capture: An overview

Ozone and childhood respiratory health: A primer for US pediatric providers and a call for a more protective standard

Implementation of a Satellite-Based Tool for the Quantification of CH₄ emissions over Europe (AUMIA v1.0) – Part 1: Forward Modeling Evaluation against Near-Surface and Satellite Data

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Beyond CO2 equivalence: The impacts of methane on climate, ecosystems, and health

Cited by 117 publications

References 59 publications

Climate change mitigation with carbon capture: An overview

Climate change mitigation with carbon capture: An overview

Ozone and childhood respiratory health: A primer for US pediatric providers and a call for a more protective standard

Implementation of a Satellite-Based Tool for the Quantification of CH4 emissions over Europe (AUMIA v1.0) – Part 1: Forward Modeling Evaluation against Near-Surface and Satellite Data

Contact Info

Product

Resources

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Implementation of a Satellite-Based Tool for the Quantification of CH₄ emissions over Europe (AUMIA v1.0) – Part 1: Forward Modeling Evaluation against Near-Surface and Satellite Data