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Research Progress on Greenhouse Gas Emission Trends and Mitigation Measures

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (30 April 2025) | Viewed by 2682

Special Issue Editor


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Guest Editor
Energy Planning Program/COPPE/UFRJ, Federal University of Rio de Janeiro, Centro de Tecnologia, Bloco C - Sala 211, Rio de Janeiro, Brazil
Interests: greenhouse effect; hydroelectric power plants; environment; methane and carbon dioxide flows

Special Issue Information

Dear Colleagues,

Greenhouse gas emissions represent a major challenge for humanity due to possible consequences for the planet's climate balance.

Scientific research evolves with each passing day, increasing the degree of certainty of knowledge.

There are many possibilities for mitigating emissions that involve regulatory aspects negotiated at the Climate Conference based on their respective agreements. 

Mitigation measures go far beyond regulatory aspects as there is a great possibility of extending the measures.

Geoengineering solutions, carbon credit trading markets, and technical cooperation between parties are increasingly promoting greater options to achieve possible goals.

What technological and policy solutions are available to reduce greenhouse gas emissions and mitigate the effects of climate change?

This is the challenge we set out to bring together in this Special Issue, which will showcase the best practices in measures to reduce global emissions.

We invite experts to publish articles in this Special Issue: Research Progress on Greenhouse Gas Emission Trends and Mitigation Measures.

Dr. Marco Aurelio dos Santos
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

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Published Papers (2 papers)

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23 pages, 1510 KiB  
Article
Evaluating the Effectiveness of Natural Carbon Sinks Through a Temperature-Dependent Model
by Joachim Dengler
Appl. Sci. 2025, 15(12), 6907; https://doi.org/10.3390/app15126907 - 19 Jun 2025
Viewed by 181
Abstract
Articles have recently been circulating in the media around the world, claiming that natural CO2 sinks have “suddenly and unexpectedly” ceased to function. It turned out that these articles were based on a single preprint of a meanwhile published article. Its reasoning [...] Read more.
Articles have recently been circulating in the media around the world, claiming that natural CO2 sinks have “suddenly and unexpectedly” ceased to function. It turned out that these articles were based on a single preprint of a meanwhile published article. Its reasoning is essentially based on the large spike of CO2 concentration growth in 2023 despite constant anthropogenic emissions. However, there are no obvious indications that photosynthesis or oceanic sinks have decreased. In this paper, it is shown that besides the natural sink systems of the land plants and oceans, the variability of natural emissions has to be considered. Based on a previous publication, it is made evident that natural emissions are temperature-dependent. Therefore, the careful analysis of monthly sea surface temperature and CO2-concentration data for 2023 and 2024 gives a consistent explanation for the rise in atmospheric carbon concentration growth without referring to the implausible hypothesis of failing carbon sinks. The temperature dependence of natural CO2 emissions indicates a clear causality from temperature to CO2 concentration. This is confirmed by the time shift between temperature and the subsequent concentration change. This suggests a new component in climate models with implications for climate policies. Full article
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25 pages, 5783 KiB  
Article
Measurement of Road Transport Emissions, Case Study: Centinela-La Rumorosa Road, Baja California, México
by Julio Calderón-Ramírez, José Manuel Gutiérrez-Moreno, Marco Montoya-Alcaraz and Ángel Casillas
Appl. Sci. 2024, 14(7), 2921; https://doi.org/10.3390/app14072921 - 29 Mar 2024
Cited by 1 | Viewed by 1800
Abstract
Air pollution is a global issue, and the transportation sector is recognized as the third-largest contributor to anthropogenic greenhouse gas emissions. Vehicles emit a range of chemical compounds because of the combustion process. The nature and quantity of these emissions depend on the [...] Read more.
Air pollution is a global issue, and the transportation sector is recognized as the third-largest contributor to anthropogenic greenhouse gas emissions. Vehicles emit a range of chemical compounds because of the combustion process. The nature and quantity of these emissions depend on the vehicle’s characteristics, the road, and weather conditions. These emissions require special attention due to the adverse effects contributing to global warming and human health. In this regard, diagnosing and monitoring air quality is crucial for understanding the number of emissions generated by various sources. However, in developing countries, the necessary data for conducting such analyses are not always available. The purpose of this study is to estimate emissions specifically generated from road operations. To achieve this, the HDM-4 calculation tool is utilized to estimate emissions. This tool was applied in Baja California, Mexico, on the Centinela-La Rumorosa highway. The results obtained show that annually, 372.5 tons of pollutant emissions are generated, composed of HC, CO, CO2, NOx, PM, SO2, and PB, covering a mere 128 km of length within a state road network spanning 11,429 km. This highlights the necessity of implementing strategies to reduce the environmental impact generated by vehicular operations on roads in developing countries. Full article
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