Zero-emissions transportation is an academic concept and interdisciplinary research field focused on the study, development, and implementation of transportation systems and modalities that produce no direct emissions of greenhouse gases or air pollutants at the point of operation. It investigates the technological innovations, infrastructure requirements, policy frameworks, economic models, and social factors necessary to transition towards transportation networks powered by non-combustion energy sources, thereby enabling sustainable mobility and contributing significantly to climate change mitigation and air quality improvement goals.