President Sheikh Mohamed will attend the Cop 27 climate summit in Sharm El Sheikh, Egypt, it was announced on Sunday.
The president will lead a large delegation from the Emirates for critical talks on tackling climate change.
Cop 27 — officially the Conference of the Parties of the UNFCCC — begins on Sunday with a formal handover from the UK's climate chief, Alok Sharma.
Heads of state will arrive for the World Leaders' Summit, which will take place from Monday.
A key focus on this year's 12-day event will be the implementation of agreed efforts to contain planet-warming emissions and commitments to investing in green sources of energy,
How rich countries can help developing nations to make the transition to sustainable energy is also a crucial theme.