Four candidates to be the next secretary-general of the United Nations will audition for the job this week, far fewer than there were 10 years ago when António Guterres was selected as U.N. chief.

Many of the world’s nations, but not the United States, gathered on Monday in Spain to tackle the growing gap between rich and poor nations.

The United Nations chief is sharply criticizing the “grotesque greed” of oil and gas companies for making record profits from the energy crisis on the back of the world’s poorest people.