Millions are displaced each year by climate change. José Andrés, Leon Panetta and others are teaming up to try to help

Hurricanes are ravaging the Caribbean. Flooding has left vast areas of Pakistan underwater. Drought continues to ravage Africa and parts of the Middle East. And the shifting weather patterns are driving tens of millions of people from their homes — with more than 200 million people expected to be displaced by climate-related disasters by 2050.  

But a diverse group of leaders, thinkers and activists, including chef José Andrés, former cabinet secretaries Leon Panetta and Janet Napolitano and several former presidents and big-city mayors, will meet for the first time this week on the sidelines of the United Nations General Assembly in New York to try to force world leaders to start thinking about how migration caused by climate change can be addressed. 

The Climate Migration Council, launched by Laurene Powell Jobs and her Emerson Collective, includes Michael Chertoff and Janet Napolitano — two former homeland security secretaries who oversaw U.S. immigration policies — plus Leon Panetta, who served as CIA director and defense secretary. There's also Michael Morell, a former CIA deputy director and CBS News national security contributor; San Diego Mayor Todd Gloria; the former presidents and mayors of Costa Rica and Bogotá, Colombia; and past leaders of the Organization of American States.