Colonization of terrain after the retreat of Vadret da Morteratsch, Grisons, Switzerland. Left photos 1985, right 2002. Markers indicate glacier positions. Note tree growth within 17 years. JA |
Colonization of terrain after the retreat of Vadret da Morteratsch, Grisons, Switzerland. Left photos 1985, right 2002. Markers indicate glacier positions. Note tree growth within 17 years. JA |