A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future
Shipping carries over 80% of global trade volumes and emits 3% of global greenhouse gas emissions, but it is hard to abate due to the simple fact that ships require a lot of energy and move around. Therefore, a large amount of research and development is poured into understanding the choices of alte...
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| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/1/79 |
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| author | Jan Emblemsvåg |
| author_facet | Jan Emblemsvåg |
| author_sort | Jan Emblemsvåg |
| collection | DOAJ |
| description | Shipping carries over 80% of global trade volumes and emits 3% of global greenhouse gas emissions, but it is hard to abate due to the simple fact that ships require a lot of energy and move around. Therefore, a large amount of research and development is poured into understanding the choices of alternative fuels and developing new technologies. Unfortunately, much of the work and policies derived, therefore, seem to rest on a hidden assumption that a relevant amount of green alternative fuel will be available, but that assumption does not stand up to scrutiny on a global level. For example, the results show that decarbonizing global shipping using green ammonia produced from renewable energy sources will require 3.7 times the total EU-27 power production in 2022. The purpose and novelty of this paper are to offer a clear rationale for the correct contextualization of research and development on curbing greenhouse gas emissions from global shipping and individual shipping segments to avoid overpromising and underdelivering. |
| format | Article |
| id | doaj-art-ec6beb6e5c6142fd8081a3f017b41c74 |
| institution | Kabale University |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-ec6beb6e5c6142fd8081a3f017b41c742025-01-24T13:36:47ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-01-011317910.3390/jmse13010079A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable FutureJan Emblemsvåg0Department of Ocean Operations and Civil Engineering, Norwegian University of Science and Technology (NTNU), 6025 Ålesund, NorwayShipping carries over 80% of global trade volumes and emits 3% of global greenhouse gas emissions, but it is hard to abate due to the simple fact that ships require a lot of energy and move around. Therefore, a large amount of research and development is poured into understanding the choices of alternative fuels and developing new technologies. Unfortunately, much of the work and policies derived, therefore, seem to rest on a hidden assumption that a relevant amount of green alternative fuel will be available, but that assumption does not stand up to scrutiny on a global level. For example, the results show that decarbonizing global shipping using green ammonia produced from renewable energy sources will require 3.7 times the total EU-27 power production in 2022. The purpose and novelty of this paper are to offer a clear rationale for the correct contextualization of research and development on curbing greenhouse gas emissions from global shipping and individual shipping segments to avoid overpromising and underdelivering.https://www.mdpi.com/2077-1312/13/1/79batteriesbiofuelsgravimetric energy densitygreen ammoniagreen methanolgreen hydrogen |
| spellingShingle | Jan Emblemsvåg A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future Journal of Marine Science and Engineering batteries biofuels gravimetric energy density green ammonia green methanol green hydrogen |
| title | A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future |
| title_full | A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future |
| title_fullStr | A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future |
| title_full_unstemmed | A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future |
| title_short | A Study on the Limitations of Green Alternative Fuels in Global Shipping in the Foreseeable Future |
| title_sort | study on the limitations of green alternative fuels in global shipping in the foreseeable future |
| topic | batteries biofuels gravimetric energy density green ammonia green methanol green hydrogen |
| url | https://www.mdpi.com/2077-1312/13/1/79 |
| work_keys_str_mv | AT janemblemsvag astudyonthelimitationsofgreenalternativefuelsinglobalshippingintheforeseeablefuture AT janemblemsvag studyonthelimitationsofgreenalternativefuelsinglobalshippingintheforeseeablefuture |