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.

Leaders of some of the world's largest economies are in Davos, Switzerland, this week for the annual World Economic Forum. President Trump will address attendees Thursday via a live video feed. CBS News national security contributor Samantha Vinograd has more from 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.