Smoke rising from numerous wildfires burning in the Western United States is seen in this NASA satellite image

 
Smoke rising from numerous wildfires burning in the Western United States is seen in this NASA satellite image
Smoke rising from numerous wildfires burning in Montana and Idaho is seen in this NASA satellite handout image taken September 15, 2012. A warming trend has contributed to a sharp rise in the number and size of wildfires on forest lands in the U.S. West, where big burns are likely to become the norm, according to a report released September 18 by a climate research group. REUTERS/Jeff Schmaltz/LANCE MODIS Rapid Response Team/NASA/Handout