A speech by the U.N. chief, economic growth potential in places like China and Russia, the challenges of artificial intelligence and leaders from Spain to Malaysia are set to headline the agenda at the World Economic Forum’s annual event in Davos.

Officials and business executives at the annual gathering in Switzerland said the fight against global climate change would continue with or without the United States.

A number of leaders are skipping this week’s World Economic Forum in Davos, including Indian Prime Minister Narendra Modi and Chinese President Xi Jinping.