September 1999 & February 2000
September 2000 & February 2001
September 2001 & February 2002
September 2002 & February 2003
September 2003 & February 2004
September 2004 & February 2005
September 2005 & February 2006
September 2006 & February 2007
September 2007 & February 2008
September 2008 & February 2009
September 2009 & February 2010
September 2010 & February 2011
September 2011 & February 2012
September 2012 & February 2013
Antarctic Sea Ice
September 1999 & February 2000
Image Location
World of Change
- Antarctic Sea Ice
- Arctic Sea Ice
- Fire in Etosha National Park
- Green Seasons of Maine
- Mountaintop Mining, West Virginia
- Shrinking Aral Sea
- Water Level in Lake Powell
- Columbia Glacier, Alaska
- Antarctic Ozone Hole
- Drought Cycles in Australia
- Recovery at Mt. St. Helens
- Athabasca Oil Sands
- Burn Recovery in Yellowstone
- Severe Storms
- Seasons of the Indus River
- Urbanization of Dubai
- Amazon Deforestation
- Global Temperatures
- Seasons of Lake Tahoe
- Solar Activity
- Larsen-B Ice Shelf
- Mesopotamia Marshes
- Yellow River Delta
- El Niño, La Niña, and Rainfall
- Global Biosphere
