The CCAC’s seven Hubs address agriculture, cooling, fossil fuel, heavy-duty vehicles, household energy, waste and national planning. Through these Hubs, the CCAC aims to advance action on SLCPs mitigation in key sectors. For more information about the Hubs, visit the About the Hubs page.
The Heavy-Duty Vehicles and Engines Hub brings together governments, inter-governmental and non-governmental organizations along with private sector leaders to catalyse major reductions in black carbon through adoption of clean fuel and vehicle regulations and supporting policies. Efforts focus on global adoption of Euro VI standards, scaling up soot free and electric buses, non-road mobile machinery and stationary engines, marine and inland water transport and green freight.
Reducing SLCP emissions from Heavy-Duty Vehicles and Engines
Roughly half of new and existing heavy-duty diesel vehicles are currently subject to world-class emission standards with diesel particle filters. The Heavy-Duty Vehicles and Engines Hub’s aim is to ensure that the remaining unregulated or inadequately regulated half of global diesel fleet will achieve the same. Our target is to reach 10 ppm sulfur in fuels by 2025 globally, while at the same time also supporting the introduction of vehicles emissions standards and contributing to the goals of the Coalition.
The Heavy-Duty Diesel Vehicles and Engines Hub is co-led by Cambodia and United States. Co-leadership by countries ensures government engagement and ownership of the solutions. Co-leads provide valuable insights into the policy process to help ensure implementation is practical from a national perspective.
The Heavy-Duty Diesel Vehicles and Engines Leadership Group consists of both state and non-state members that provide guidance and expertise, and connect the Hub to activities underway beyond the CCAC.
Cleaner Fuels and Vehicles
Non-Road Mobile Machinery And Stationary Engines
Marine and Inland Water Transport
Green Freight
Action to achieve these goals:
Funding as of Oct 2020: $ 8,949,346
Co-funding as of Oct 2020: $582,935
Catalyzed funding as of Oct 2020: $63,906
Lead Partner: A Coalition partner with an active role in coordinating, monitoring and guiding the work of an initiative.
Implementer: A Coalition partner or actor receiving Coalition funds to implement an activity or initiative.
Fine particles penetrate deep into the lungs. A recent study of leading public health risks ranked ambient fine particle pollution ninth among all risk factors in 2010, contributing to 3.7 million deaths in 2012. Black carbon is the second largest contributor to human-induced climate warming to-date, after carbon dioxide. All major OECD economies have dramatically reduced fine PM and BC emissions from heavy-duty diesel vehicles through a combination ultra-low sulfur diesel fuel and diesel emission control technologies; there is up to a 99 per cent removal efficiency with diesel particulate filters.
Desulfurization refers to the gradual move to low sulfur fuels. Most developed countries have now moved to fuels with a sulfur content of 50 parts per million or even 15 or 10 parts per million (ppm). Reducing fuel sulfur levels is a vital precondition for reducing the health impacts associated with transportation. Fuel sulfur directly increases production of fine particulate matter (PM2.5) in vehicle exhaust. PM2.5 is a dangerous pollutant associated with heart disease, lung cancer, and a range of other harmful health effects. Low sulfur fuels are necessary for cleaner engines (for example high compression diesel engines) and high fuel sulfur levels also interfere with the performance of vehicle emissions control equipment designed to remove small particulates and other pollutants from the exhaust stream (for example particulate filters and catalysts).
Green freight refers to the efforts of the freight sector to help reduce greenhouse gas emissions and air pollutants and improve fuel efficiency across the global supply chain while maintaining competitiveness and economic growth. By reducing the amount of energy (i.e., fuel use) associated with freight transport through a range of measures, businesses can reduce costs and become more competitive. These efficiency measures invariably lead to emissions savings that result in broader benefits for society and the environment. Freight movement is largely driven by diesel-powered cargo vessels, trucks, and trains. While diesels are the workhorses of the transport sector and relatively energy efficient (as compared to gasoline vehicles or jet aircrafts), their combined contribution to transportation-related climate warming greenhouse gases and other short-lived climate pollutants, particularly black carbon, is significant.
Soot-free engine technologies are those that achieve at least a 99% reduction in tailpipe black carbon emissions compared to uncontrolled diesel exhaust. These technologies include any diesel or alternative fuel engines certified to Euro VI or US 2010 emission levels.
As an example, soot-free buses can be powered by a wide range of fuels including fossil diesel or compressed natural gas (CNG), biogas, or other liquid biofuels, and electric drive engines including hybrid drive, fuel cell, and battery electric drivetrains. A soot-free bus – be it diesel, natural gas or electric – will emit 99% less tailpipe PM2.5 and 85% less black carbon compared to a diesel bus without any emission controls.
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