domingo, abril 23, 2006

Um mundo em mudança

Pela BBC

Argentina's Upsala Glacier was once the biggest in South America, but it is now disappearing at a rate of 200 metres per year.

Mount Hood in Oregon at the same time
in late summer in 1985 and 2002.

Rhone glacier in Valais, Switzerland. In 2001, the glacier had shrunk by some 2.5km,
and its 'snout' had shifted about 450 metres higher up.