Bear Glacier, Alaska – 1909 and 2005
Mar Chiquita Lake, Argentina – 1998 and 2011
Matterhorn Mountain in the Alps, on the border between Switzerland and Italy – 1960 and 2005
Forests in Rondonia, Brazil – 1975 and 2009
Powell Lake, Arizona and Utah – 1999 and 2014
Great Man-Made River, Libya – 1987 and 2010
Uruguay Forests – 1975 and 2009
Mabira Forest, Uganda – 2001 and 2006
The Dasht River, Pakistan – 1999 and 2011
