world is changing..

This striking image of a sad face weeping was etched into melting Artic ice on Norway's Austfonna ice-shelf. The glacier has been vanishing at the rate of 160ft a year for 12 years.

Some scientists say an increase in the rate of melting of the world's glaciers is evidence of global warming. Argentina's Upsala Glacier was once the biggest in South America, but it is now disappearing at a rate of 200 metres per year.

Glacial change. In 2001, the glacier had shrunk by some 2.5km, and its 'snout' had shifted about 450 metres higher up.

Rising tides.
Some scientists predict that a warmer climate will trigger more violent storms, which will cause increased rates of coastal erosion.

Vanishing islands. Thousand independent scientists, predicts that sea levels could rise by between 9 and 88cm in the next century.

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

Images show damage to White Spruce trees in Alaska caused by the pests.