News 15 ‘Then and Now’ Photos That Show Dramatic Changes on Earth C.C. 0 © NASA Salta, Argentina, 2009 Deforestation in the Province of Salta, Argentina, between June 28, 1972, and Jan. 22, 2009. Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 <1 ... 2526 27 2829 ... 31>