A rapid global transition to electric vehicles could prevent 8.8 million premature deaths and dramatically reduce childhood asthma over the next 25 years, according to a major new report from the International Council on Clean Transportation (ICCT).
The study, Health Benefits of Zero-Emission Transport Through 2050, concludes that road transport emissions remain one of the world’s largest public health threats. Without faster vehicle electrification, pollution-related deaths are expected to rise sharply by mid-century. However, an ambitious shift to zero-emission vehicles could reverse that trend while delivering significant health benefits worldwide.
Road Transport Pollution Remains a Global Health Crisis
The ICCT estimates that in 2024, pollution from road transport contributed to nearly 700,000 premature deaths and approximately 250,000 new childhood asthma cases worldwide. On average, emissions from cars, trucks, and buses are linked to one premature death every 45 seconds and a new childhood asthma case every two minutes.
Road transport alone accounts for nearly half of the World Health Organization’s recommended annual limit for outdoor fine particulate pollution, making it one of the most important sectors for reducing harmful air pollution.
The study examined the health impacts of major traffic-related pollutants, including fine particulate matter (PM2.5), nitrogen dioxide (NO₂), and ground-level ozone, all of which are strongly associated with vehicle exhaust.
Current Policies Are Not Enough
Researchers modeled several future scenarios based on different rates of EV adoption.
Under the baseline scenario, which assumes today’s policies remain largely unchanged through 2050, the global health burden worsens considerably. Premature deaths linked to road transport are projected to increase by 74%, with pollution causing roughly one death every 26 seconds by 2050.
Population growth, aging populations, and expanding vehicle fleets are expected to offset improvements in engine efficiency and emissions regulations if electrification does not accelerate.
Ambitious Electrification Delivers Major Health Benefits
The report’s most optimistic scenario assumes nearly all new vehicle sales become zero-emission by 2045, with passenger cars reaching that milestone even earlier in many markets.
Under this pathway, the ICCT projects:
– 63% fewer premature deaths from road transport pollution by 2050.
– 80% fewer new childhood asthma cases.
– 8.8 million premature deaths prevented between now and 2050.
The findings suggest that aggressive electrification policies would not only reduce emissions but also produce immediate public health benefits through cleaner air.
Heavy-Duty Trucks Offer Outsized Benefits
While passenger cars make up the majority of vehicles on the road, the report highlights the disproportionate impact of heavy-duty trucks.
Each diesel truck emits significantly more harmful pollutants than a typical passenger vehicle, meaning electrifying commercial freight fleets delivers greater health benefits on a per-vehicle basis. Accelerating the adoption of electric trucks and buses could therefore provide some of the fastest improvements in urban air quality.
Developing Countries Face the Greatest Risk
The study also warns that the health impacts of vehicle pollution are becoming increasingly uneven across the globe.
Under current policies, high-income countries are expected to see a 48% decline in premature deaths related to road transport by 2050 as cleaner vehicles replace older fleets.
In contrast:
– Upper-middle-income countries could experience more than a 50% increase in pollution-related deaths.
– Low- and lower-middle-income countries may see increases exceeding 200%.
An accelerated transition to zero-emission vehicles would substantially reduce these disparities, with significant improvements projected across countries at every income level.
Cleaner Vehicles Need Supporting Policies
Although vehicle electrification offers the greatest long-term health gains, the ICCT notes that additional measures can deliver meaningful improvements before the global fleet becomes fully electric.
These include stricter vehicle emissions standards, cleaner fuels, fleet renewal programs, retrofitting older vehicles, and expanding low-emission zones in cities. Together, these policies can reduce harmful pollution while supporting the transition to zero-emission transport.
Climate Benefits Extend Beyond the Study
Importantly, the report focuses exclusively on the health impacts of air pollution and does not account for the broader effects of climate change.
Internal combustion vehicles also emit large amounts of carbon dioxide and other greenhouse gases that contribute to global warming. As a result, the total societal benefits of widespread EV adoption are likely to be even greater than the health improvements quantified in the study.
Taken together, the findings reinforce the role of electric vehicles as a critical tool for improving public health, reducing air pollution, and accelerating the transition to cleaner transportation worldwide.
