Sultan al-Jaber, the head of the state-owned Abu Dhabi National Oil Company, is due to preside over the Nov. 30 - Dec. 12 meeting in Dubai known as COP28.

Video. EU and US lawmakers say oil exec 'unsuitable' to chair climate summit

In an open letter, the lawmakers urged the EU, US and UN to 'engage in diplomatic efforts to secure the withdrawal of the president-designate of COP28.'