
FILE - Passengers walk beneath a sign for the upcoming COP31 U.N. Climate Summit at the Istanbul Airport in Istanbul, Turkey, Oct. 8, 2026. (AP Photo/Emrah Gurel, File)

FILE - Passengers walk beneath a sign for the upcoming COP31 U.N. Climate Summit at the Istanbul Airport in Istanbul, Turkey, Oct. 8, 2026. (AP Photo/Emrah Gurel, File)