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Updated: Jun 25, 2025
09:34
Implementation of Portable Emissions Measurement Systems PEMS for the Real-driving Emissions RDE Regulation in Europe
Published on: December 4, 2016
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Integrated assessment modeling of a zero-emissions global transportation sector
Simone Speizer1, Jay Fuhrman1, Laura Aldrete Lopez2
1Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD, USA.
Nature Communications
|May 24, 2024
Summary
Achieving zero transportation emissions by mid-century requires rapid shifts to electrification, biofuels, and hydrogen. This transition is crucial for meeting global climate targets and limiting warming to 1.5°C.
Area of Science:
- Climate change mitigation
- Sustainable transportation systems
- Integrated assessment modeling
Background:
- The transportation sector contributes over 20% of global carbon emissions.
- Existing research often lacks integrated analysis across all transport modes and feedback systems.
- Achieving global climate goals necessitates deep decarbonization of transportation.
Purpose of the Study:
- To model deep decarbonization scenarios for the transportation sector.
- To evaluate strategies for achieving zero emissions across aviation, shipping, and other modes.
- To analyze integrated feedbacks on other sectors and environmental systems under climate targets.
Main Methods:
- Utilized a global integrated assessment model (IAM).
- Evaluated scenarios for fossil fuel phase-out and alternative technology implementation.
- Assessed pathways consistent with limiting end-of-century warming below 1.5°C.
Main Results:
- Electrification is identified as the primary decarbonization technology for most transportation modes.
- Biofuels and hydrogen are critical for decarbonizing aviation and shipping.
- The most ambitious scenario achieves zero transportation emissions by mid-century.
Conclusions:
- Deep decarbonization of transportation is achievable through a combination of electrification, biofuels, and hydrogen.
- Rapid technological shifts are required, impacting fuel demands and upstream energy systems.
- Achieving mid-century zero emissions significantly contributes to global 1.5°C climate targets.
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