the forest fire , Northeastern Minnesota. 森林火災，明尼蘇達州東北部。

Clint Austin / The Duluth News-Tribune via AP

NASA via AFP - Getty Images
PhotoBlog - Minnesota wildfire fumes spread over 400 miles
http://photoblog.msnbc.msn.com/_news/2011/09/14/7757934-minnesota-wildfire-fumes-spread-over-400-miles