On 4 October, the International Energy Agency brought together experts from government, industry, research and civil society to discuss the role of low-emission fuels in decarbonising the international maritime and aviation sectors.    The workshop was attended by approximately 20 in-person participants as well as 17 online participants from 13 countries . Participants included senior government officials and experts from United Nations bodies, as well as industry associations, academia and various think tanks. Among those present were members of the Partnership for Transport Projects and representatives programs of technological cooperation relevant to the topic. Low-emission fuels are widely recognized as the primary technology option needed to reduce greenhouse gas emissions from the international maritime and aviation sectors. These long-haul transport sectors require high-energy-density fuels, which means that direct electrification will – from today's perspective – likely be limited to short-haul and smaller vessels and aircraft. Increasing the use of low-emission fuels such as sustainable biofuels, hydrogen and hydrogen-based fuels will therefore be key strategies to decarbonise shipping and aviation operations.