A plane is seen cov­ered in vol­canic ash in San Car­los de Bar­iloche air­port, south­ern Argentina, Tues­day June 7, 2011. The wind car­ried vol­canic ash across the Andes to Argentina result­ing in the clos­ing of six air­ports, and the can­cel­la­tion of flights in the cap­i­tal city. The Puye­hue vol­cano, dor­mant for decades, erupted in south-​​central Chile on Sat­ur­day. (AP Photo/​Alfredo Leiva).