Cop28 officially opens on 30 November in Dubai in the United Arab Emirates, and the conference is scheduled to end on 14 December, although is likely to run later. World leaders will attend the world climate action summit segment on 1 and 2 December and after they depart the crunch negotiations will be done by their representatives, environment ministers or other high-ranking officials. Sultan Al Jaber, Cop28 president Sultan Al Jaber. Photograph: Kamran Jebreili/AP Sultan Al Jaber, the president-designate of Cop28, is minister for advanced technology in the government of the UAE, and the co-founder in 2006 of its government-backed…