WEST HOLLYWOOD, CALIFORNIA - OCTOBER 07: Stairs are seen at the U.N. World Food Programme as it welcomes The Weeknd as a Goodwill Ambassador on October 07, 2021 in West Hollywood, California. (Photo by Rich Fury/Getty Images for U.N. World Food Programme)

DAVOS, Switzerland (AP) — The head of the U.N.’s World Food Program is telling billionaires it’s “time to step up” as the global threat of food insecurity rises because of Russia’s war in Ukraine. Agency Executive Director David Beasley told The Associated Press at the World Economic Forum gathering on Monday that he’s seen encouraging signs from some of the world’s richest people, like Elon Musk and Jeff Bezos. Musk and Bezos didn’t immediately respond to emails or other messages seeking comment. Beasley’s challenge came as a new study projected that nearly 1.9 billion people could face insecurity by November.