The Transport Decarbonisation Plan will consider the transport sector as a whole and the increased contribution that all modes need to make to achieve an economy-wide net zero target by 2050. Given the global nature of the aviation and shipping sectors sector, and their climate change impacts, effective and coordinated international action remains essential. Unilateral action by a single state leads to the risk that these highly mobile carbon emissions are simply moved overseas, therefore failing to reduce global greenhouse gas emissions. The UK will continue its leadership role at the IMO pushing for the most ambitious measures to reduce GHG emissions from ships and negotiate for ICAO to agree a long-term emissions reduction goal by its 41st Assembly in 2022. Government will keep our approach to the inclusion of international shipping and aviation emissions in our legislation under review, taking account of progress in the IMO and ICAO.