This data visualization shows high levels of carbon monoxide spreading east from Central Canada, where large fires burned throughout July 2010.
Published Aug 9, 2010
A ribbon of smoke snakes across western Canada in this true-color image from August 2, 2010.
Published Aug 3, 2010
A river of thick smoke poured across central Canada on July 14, 2010.
Published Jul 15, 2010
Gray-brown smoke stretches across a broad swath of western Canada in this true-color image from July 13, 2010.
Published Jul 15, 2010
