initiatives / Clean Air


Motor vehicle emissions harm public health and the environment. The ICCT estimates that exposure to vehicle emissions in the year 2005 produced at least 242,000 global early deaths. Emissions of fine particulate matter, ozone-precursors, air toxics and other harmful pollutants also produce environmental damage in the form of crop fertility losses and near-term climate warming.

Featured Work



Recently Released

Alternatives to heavy fuel oil use in the Arctic: Economic and environmental tradeoffs
Compares the economic and environmental tradeoffs of switching from HFO to two alternative fuels, distillate fuel and liquefied natural gas (LNG), in the IMO Arctic, as defined in the IMO Polar Code.
Working paper
Impacts of world class vehicle efficiency and emissions regulations in select G20 countries
Characterizes the climate and health benefits of adopting world-class standards for new vehicle efficiency/CO2 and conventional pollutant emissions in all members of the G20 Transport Task Group.
Evaluation of emission-control scenarios for agricultural tractors and construction equipment
Evaluates alternative regulatory pathways for India’s agricultural tractors and construction equipment on the basis of air pollutant emissions.
Working paper



From the ICCT Blogs

Shell game? Debating real-world fuel consumption trends for heavy-duty vehicles in Europe
The EU is about to propose new standards to limit CO2 emissions from heavy-duty vehicles. Some manufacturers are still trying to persuade policy makers that regs aren't necessary because truck fuel-efficiency really is improving significantly on its own. Don't be fooled; on average, it isn't.
Staff Blog
Euro VI para o Brasil: um caminho claro para céus mais limpos
Em Fevereiro, a CETESB anunciou novas fases para emissões de veículos pesados, leves e motocicletas no Brasil. Esse é um momento oportuno para salientar os grandes benefícios para o Brasil com um alinhamento com o padrão Euro VI para veículos pesados.
Staff Blog
A sneak preview of future stages of Indian emission standards for non-road engines reveals a tractor-sized loophole
In short, it’s welcome news that Indian regulators have set their sights on catching up with best-practice emissions standards for non-road engines. Here’s hoping that in aiming for that goal in 2025 they don’t overlook a simple fix that will bring even more immediate help in solving the persistent air pollution problems facing the country.
Staff Blog